Where to begin here on Wiki? Below you will find good places to start, laid out in a logical way. So jump in with "Introductions", and learn a little, then go where the links, and your interests, lead you.
Introductions
Welcome Visitors -- for new visitors.
One Minute Wiki -- Okay, it's a bit longer than a minute, but still very helpful
Text Formatting Rules -- how to format your wiki text.
New User Pages -- a trimmed-down version of this page for new users.
Front Page -- was supposed to be analogous with the front page of a newspaper, but this isn't a newspaper.
Wiki Wiki Web -- describes this site.
Tips For Beginners -- all mysteries revealed.
Wiki Wiki Sandbox -- the place to experiment editing Wiki.
Recent Visitors -- is the who's new of wikiville.
User Name and Wiki Home Page -- identify yourself.
Wiki Social Norms -- norms that have evolved here.
Wiki Wiki Web Faq -- add any question about Wiki here.
Wiki Wiki Bugs -- to report bugs in working with Wiki Wiki.
Changes
Recent Changes -- a list of what's new here.
Quick Changes -- for those who check frequently.
Ancient Changes -- oldies (but goodies) that change too infrequently to make it into RecentChanges.
Recent Changes Rss Another way to keep up with what's new
c2.com 
-- casual reader
Other Page Collections
Random Pages -- ignores Recent Changes in the search for greater quality.
Things To Think About -- what's on Wiki's collective mind.
Top Ten -- what people are reading, auto-generated by script.
Manual Top Ten -- what people are reading, maintained by you.
Road Maps -- guides to browsing on various subjects.
Wiki Categories -- classify many of our pages.
Category Wiki -- list of pages about the Wiki (search for How To).
Book List -- printed works recommended by visitors.
Search
Find Page -- title and full text search.
People Projects And Patterns (This wiki is primarily about People Projects And Patterns.)
Wiki Pages About What Are Patterns -- good starting point.
Category Patterns Group -- list of reading groups around the world.
Informal History Of Programming Ideas -- Wiki Theme.
See original on c2.com