* The Web Design doc: https://docs.google.com/document/d/14Ym6LTR9hLBGI0cM0mMU_BDE...
* HN Contractors spreadsheet: https://spreadsheets.google.com/spreadsheet/ccc?key=0AlD_6iE...
* HN Co-founder wishlist spreadsheet: https://spreadsheets1.google.com/spreadsheet/ccc?hl=en_US...
* Startup Ideas spreadsheet (now read-only, was writable by all HN pretty sure): https://spreadsheets1.google.com/spreadsheet/ccc?hl=en_GB...
* HN internships and interns: https://docs.google.com/Doc?docid=0ASrV38bNy1TlZHhqNjlmel8xM...
* The SAAS Model Spreadsheet (not crowdsourced/writable, but was very popular): https://spreadsheets0.google.com/spreadsheet/ccc?authkey=CN_...
* The complete list of TED talks by date (not crowdsourced/writable, but still very useful): https://spreadsheets.google.com/pub?key=pjGlYH-8AK8ffDa6o2bY...