Google has announced GSoC2011.
http://google-opensource.blogspot.com/2011/01/google-summer-of-code-announce...
The timeline is here:
http://www.google-melange.com/document/show/gsoc_program/google/gsoc2011/tim...
This is a very good opportunity for students to participate and showcase their skills. Read the above links for more details. As you can read from http://www.mediawiki.org/wiki/Summer_of_Code_2011 Mediawiki plans to participate in GSOC 2011. So students or mentors having wonderful project ideas to improve mediawiki, please add here http://www.mediawiki.org/wiki/Summer_of_Code_2011/Project_ideas
Thanks Santhosh Thottingal