diff --git a/command.rkt b/command.rkt
index 3314d4c..241f8a7 100644
--- a/command.rkt
+++ b/command.rkt
@@ -59,7 +59,7 @@ polcom [filename] (renders individual file)")]
                      [else (let ([possible-file (->path arg)])
                              (if (file-exists? possible-file)
                                  `(begin
-                                    (require (planet mb/pollen/render))
+                                    (require pollen/render)
                                     (render ,possible-file))
                                  `(displayln (format "No command defined for '~a'" ,arg))))]))))
 
diff --git a/lang/reader.rkt b/lang/reader.rkt
index f90a72a..112143a 100644
--- a/lang/reader.rkt
+++ b/lang/reader.rkt
@@ -18,7 +18,7 @@
    (mb-read-syntax (object-name p) p)))
 
 (define (make-output-datum i)
-  `(module pollen-lang-module (planet mb/pollen) 
+  `(module pollen-lang-module pollen 
      ,@i))
 
 
@@ -27,7 +27,7 @@
   (datum->syntax i 
                  ;; select pollen dialect based on file type
                  `(module pollen-lang-module ,(if (preproc-source? path-string)
-                                                  '(planet mb/pollen/main-preproc)
-                                                  '(planet mb/pollen/main))
+                                                  'pollen/main-preproc
+                                                  'pollen/main)
                     ,@i)
                  i))
diff --git a/library/css/core.rkt b/library/css/core.rkt
index dd60d3f..8dce549 100644
--- a/library/css/core.rkt
+++ b/library/css/core.rkt
@@ -1,9 +1,9 @@
 #lang racket/base
 (require racket/string racket/list racket/contract)
-(require (planet mb/pollen/readability))
+(require pollen/readability)
 
 (provide (all-defined-out)
-         (all-from-out racket/string racket/list racket/contract (planet mb/pollen/readability)))
+         (all-from-out racket/string racket/list racket/contract pollen/readability))
 
 (define css-property-prefixes '("-moz-" "-webkit-" "-o-" "-ms-" ""))
 
diff --git a/library/css/font-face.rkt b/library/css/font-face.rkt
index ee63522..14cfa41 100644
--- a/library/css/font-face.rkt
+++ b/library/css/font-face.rkt
@@ -1,6 +1,6 @@
 #lang racket/base
 (require "core.rkt")
-(require (planet mb/pollen/file-tools))
+(require pollen/file-tools)
 (require net/url-structs net/base64 racket/file)
 (provide (all-defined-out))
 
diff --git a/main-helper.rkt b/main-helper.rkt
index 19e3e23..6b69122 100644
--- a/main-helper.rkt
+++ b/main-helper.rkt
@@ -1,8 +1,6 @@
 #lang racket
 (require racket/contract/region)
 
-;; use full planet paths because this file is evaluated from source directory,
-;; not module directory
 (require (for-syntax racket/rerequire pollen/tools pollen/world))
 (require pollen/tools pollen/world)
 
diff --git a/main-imports.rkt b/main-imports.rkt
index b7732de..a1f9ef4 100644
--- a/main-imports.rkt
+++ b/main-imports.rkt
@@ -6,13 +6,13 @@
 
 
 (require racket/list
-         (planet mb/pollen/tools) 
-         (planet mb/pollen/main-helper)
-         (only-in (planet mb/pollen/ptree) ptree-source-decode path->ptree-name)
-         (only-in (planet mb/pollen/predicates) ptree?))
+         pollen/tools 
+         pollen/main-helper
+         (only-in pollen/ptree ptree-source-decode path->ptree-name)
+         (only-in pollen/predicates ptree?))
 
 (provide (all-from-out racket/list
-                       (planet mb/pollen/tools) 
-                       (planet mb/pollen/main-helper)
-                       (planet mb/pollen/ptree)
-                       (planet mb/pollen/predicates)))
\ No newline at end of file
+                       pollen/tools 
+                       pollen/main-helper
+                       pollen/ptree
+                       pollen/predicates))
\ No newline at end of file
diff --git a/main-preproc-imports.rkt b/main-preproc-imports.rkt
index 4a9c9d2..c0f0711 100644
--- a/main-preproc-imports.rkt
+++ b/main-preproc-imports.rkt
@@ -4,11 +4,11 @@
 ;; so they can be imported into the render.rkt namespace
 ;; and cached for the benefit of the render eval function.
 
-(require (only-in (planet mb/pollen/readability) ->list)
-         (only-in (planet mb/pollen/tools) trim)
-         (only-in (planet mb/pollen/predicates) whitespace?))
+(require (only-in pollen/readability ->list)
+         (only-in pollen/tools trim)
+         (only-in pollen/predicates whitespace?))
 
 (provide (all-from-out
-          (planet mb/pollen/readability)
-          (planet mb/pollen/tools)
-          (planet mb/pollen/predicates)))
\ No newline at end of file
+          pollen/readability
+          pollen/tools
+          pollen/predicates))
\ No newline at end of file
diff --git a/main-preproc.rkt b/main-preproc.rkt
index ee783e4..0dca4a1 100644
--- a/main-preproc.rkt
+++ b/main-preproc.rkt
@@ -17,8 +17,8 @@
    
    ; doclang2_raw is a clone of scribble/doclang2 with decode disabled
    ; helpful because it collects & exports content via 'doc
-   (module pollen-inner (planet mb/pollen/lang/doclang2_raw)
-     (require (planet mb/pollen/tools) (planet mb/pollen/main-helper))
+   (module pollen-inner pollen/lang/doclang2_raw
+     (require pollen/tools pollen/main-helper)
      (require-and-provide-extras) ; brings in the project require files
      
      expr ...) ; body of module 
diff --git a/main.rkt b/main.rkt
index cfc33ed..69ea131 100644
--- a/main.rkt
+++ b/main.rkt
@@ -19,10 +19,10 @@
    
    ;; doclang2_raw is a clone of scribble/doclang2 with decode disabled
    ;; helpful because it collects & exports content via 'doc
-   (module pollen-inner (planet mb/pollen/lang/doclang2_raw)
+   (module pollen-inner pollen/lang/doclang2_raw
      ;; use same requires as top of main.rkt 
      ;; (can't import them from surrounding module due to submodule rules)
-     (require (planet mb/pollen/tools) (planet mb/pollen/main-helper))
+     (require pollen/tools pollen/main-helper)
      (require-and-provide-extras) ; brings in the project require files
      
      ;; #%top binding catches ids that aren't defined
@@ -45,7 +45,7 @@
      (define inner-here-path here-path)  
      (provide (all-defined-out))
      (provide (all-from-out ; pollen file should bring its requires
-               (planet mb/pollen/tools)))) 
+               pollen/tools))) 
    
    (require 'pollen-inner) ; provides doc & #%top, among other things
    
diff --git a/predicates.rkt b/predicates.rkt
index 9c579ee..3d4ab17 100644
--- a/predicates.rkt
+++ b/predicates.rkt
@@ -160,45 +160,6 @@
   (check-false (elements-unique? "foo")))
 
 
-;; certain ptree requirements are enforced at compile-time.
-;; (such as names must be valid strings, and unique.)
-;; otherwise this becomes a rather expensive contract
-;; because every function in ptree.rkt uses it.
-;; note that a ptree is just a bunch of recursively nested ptrees.
-(define/contract (ptree? xs)
-  (any/c . -> . boolean?)
-  (and (list? xs) (andmap (λ(x) (or (ptree-name? x) (ptree? x))) xs)))
-
-(module+ test
-  (check-true (ptree? '(foo)))
-  (check-true (ptree? '(foo (hee))))
-  (check-true (ptree? '(foo (hee ((uncle "foo")))))))
-
-
-
-
-;; ptree location must represent a possible valid filename
-(define/contract (ptree-name? x #:loud [loud #f])
-  ((any/c) (#:loud boolean?) . ->* . boolean?)
-  ;; todo: how to express the fact that the ptree-location must be 
-  ;; a valid base name for a file?
-  ;; however, don't restrict it to existing files 
-  ;; (author may want to use ptree as wireframe)
-  (define result (and x (not (list? x)) (not (whitespace? (->string x)))))
-  (if (and (not result) loud)
-      (error "Not a valid ptree key:" x)
-      result))
-
-(module+ test
-  (check-true (ptree-name? "foo-bar"))
-  (check-true (ptree-name? "Foo_Bar_0123"))
-  (check-true (ptree-name? 'foo-bar))
-  (check-true (ptree-name? "foo-bar.p"))
-  (check-true (ptree-name? "/Users/MB/foo-bar"))
-  (check-false (ptree-name? #f))
-  (check-false (ptree-name? ""))
-  (check-false (ptree-name? " ")))
-
 
 ;; recursive whitespace test
 (define/contract (whitespace? x)
diff --git a/render.rkt b/render.rkt
index 7624e00..ab4ee2e 100644
--- a/render.rkt
+++ b/render.rkt
@@ -287,17 +287,17 @@
 (require web-server/templates  
          racket/list
          xml/path
-         (planet mb/pollen/debug)
-         (planet mb/pollen/decode)
-         (planet mb/pollen/file-tools)
-         (planet mb/pollen/main-imports)
-         (planet mb/pollen/main-preproc-imports)
-         (planet mb/pollen/predicates)
-         (planet mb/pollen/ptree)
-         (planet mb/pollen/readability)
-         (planet mb/pollen/template)
-         (planet mb/pollen/tools)
-         (planet mb/pollen/world))
+         pollen/debug
+         pollen/decode
+         pollen/file-tools
+         pollen/main-imports
+         pollen/main-preproc-imports
+         pollen/predicates
+         pollen/ptree
+         pollen/readability
+         pollen/template
+         pollen/tools
+         pollen/world)
 (define original-ns (current-namespace))
 
 (define/contract (render-through-eval base-dir eval-string)
@@ -318,17 +318,17 @@
            racket/rerequire 
            racket/contract 
            racket/list
-           (planet mb/pollen/debug)
-           (planet mb/pollen/decode)
-           (planet mb/pollen/file-tools)
-           (planet mb/pollen/main-imports)
-           (planet mb/pollen/main-preproc-imports)
-           (planet mb/pollen/predicates)
-           (planet mb/pollen/ptree)
-           (planet mb/pollen/readability)
-           (planet mb/pollen/template)
-           (planet mb/pollen/tools)
-           (planet mb/pollen/world)))
+           pollen/debug
+           pollen/decode
+           pollen/file-tools
+           pollen/main-imports
+           pollen/main-preproc-imports
+           pollen/predicates
+           pollen/ptree
+           pollen/readability
+           pollen/template
+           pollen/tools
+           pollen/world))
     (namespace-require 'racket) ; use namespace-require for FIRST require, then eval after
     (eval eval-string (current-namespace))))
 
@@ -350,7 +350,7 @@
       ;; for include-template (used below)
       (require web-server/templates)
       ;; for ptree navigation functions, and template commands
-      (require  (planet mb/pollen/debug) (planet mb/pollen/ptree) (planet mb/pollen/template))
+      (require pollen/debug pollen/ptree pollen/template)
       ;; import source into eval space. This sets up main & metas
       (require ,(->string source-name))
       (set-current-ptree (make-project-ptree ,PROJECT_ROOT))
diff --git a/tests/requires/include-me.rkt b/tests/requires/include-me.rkt
index 191943e..d7c7d33 100644
--- a/tests/requires/include-me.rkt
+++ b/tests/requires/include-me.rkt
@@ -1,7 +1,7 @@
 #lang racket/base
 (require racket/contract racket/list racket/match)
-(require (planet mb/pollen/tools) (planet mb/pollen/decode)
-         (planet mb/pollen/library/decode-tools))
+(require pollen/tools pollen/decode
+         pollen/library/decode-tools)
 
 (provide (all-defined-out))