Out of curiosity, can you name some of the legitimate businesses that were affected? I thought the algo only targeted content farms and sites that regurgitated other peoples content.
Divide that by category types and link from the sidebar - this will pass linkjuice more efficiently and improve your traffic.
The really interesting thing is that http://www.onedayoneinternship.com/ has seen no change in traffic. Its architecture is nearly identical, and much of the content is shared across both sites (because I built the sites for humans, not search engines). There's a decent chance that this is causing the problem, but I can't understand why ODOJ would get hit instead of ODOI. Even content that isn't partially duplicated on ODOI is getting hit, so it's either a domain level filter/penalty based on duplicate content, or it's not the issue.
Right now I'm thinking a lot about how to fix whatever Google doesn't like, but it's really hard when you can't be sure. I can't really afford to do significant testing (and you can't actually run a good experiment with a real site). For now I'm going to keep investigating, and work on building links. That's always a good time investment.
Wild guess: "job" is a highly competitive keyword subject to lots of scammy black hats ("work from home for $$$!!!"), while "internship" is much more clear of the scum?
/\ For non-URLed discussion of dozens or possibly hundreds of legit sites which were hit.
Today's Wired article gives some more specific examples:
http://www.wired.com/epicenter/2011/03/google-spam-side-effe...