These are some potentially useful links.
The African Linguistics School
Free for students in Africa, and a fantastic experience - apply!
Why not play a few rounds of the Great Language Game?
A must-do for undergrad linguistics students.
I can't vouch for the quality of the data (and there's no citations given), but it's at least very interesting to look through.
The Rutgers Optimality Archive is a collection of papers, etc. set within (or sometimes arguing against) Optimality Theory. Most of them are about phonology, but not all.
Hands-down the best tool for doing OT properly. I think the new version can even make typohedrons!
A big collection of papers on all manner of linguistic things.
The Agreement By Correspondence bibliography, care of Stephanie Shih and Sharon Inkelas.
The World Atlas of Language Structures Online
An online Zulu dictionary (doesn't work in Google chrome for reasons that are beyond me)
The Electronic Bibliography for African Languages and Linguistics
Two programs I've found indispensable for getting work done. Mac-only, sorry.
Doke's problem with Zulu clicks
Did you know that Clement M. Doke did an X-ray study of click consonant articulation as early as 1923?
The department of English Language and Linguistics at the University Currently Known As Rhodes.
The very finest Linguistics department at Rutgers, The Exalted State University of the State of New Jersey