Change "Who to follow" page to Twitter lists

Created by: petetalksweb

The "Who to follow" page seems a little unruly. I think it might be better to change it to a Twitter list maintained by the A11y Project Twitter account or separate Twitter lists for people, companies, and Meetups.

This would have the added benefit of allowing users to follow/unfollow the whole list at once, rather than going through and doing it piecemeal.