Broken require

gistfile1.txt

$ cat foo.js
require('share')
$ ls node_modules
share
$ head node_modules/share/package.json
{
	"name": "share",
	"version": "0.4.1",
	"description": "A database for concurrent document editing",
	"keywords": ["operational transformation", "ot", "concurrent", "collaborative", "database", "server"],
	"homepage": "",
	"author": "Joseph Gentle <[email protected]>",
	"main": "lib/index.js",
	"bin": {
		"sharejs": "bin/sharejs",
$ node foo.js
node.js:134
        throw e; // process.nextTick error, or 'error' event on first tick
        ^
Error: Cannot find module 'share'
    at Function._resolveFilename (module.js:326:11)
    at Function._load (module.js:271:25)
    at require (module.js:355:19)
    at Object.<anonymous> (/Users/jeremya/Source/foo/foo.js:1:63)
    at Module._compile (module.js:411:26)
    at Object..js (module.js:417:10)
    at Module.load (module.js:343:31)
    at Function._load (module.js:302:12)
    at Array.<anonymous> (module.js:430:10)
    at EventEmitter._tickCallback (node.js:126:26)