Nice job, I'm working on something similar, now focussing on the ranking, just a note: if I search 'picasso' I get a disambiguation page description, you should try my json-wikipedia [1], it adds also a field with the 'type' of the article, so it would be easy to remove the disambiguation/redirects ;)
[+] [-] diegolo|11 years ago|reply
[1] https://github.com/diegoceccarelli/json-wikipedia