... getting bitcoin back on wikipedia.
I got a reply from the guy who deleted the Wikipedia article.
He pointed to the procedure for undeleting articles, and mentioned that the Bitcoin article has already been through that procedure twice but the appeals were rejected because Bitcoin doesn't have enough respectable mainstream coverage. I think that the Wikipedia criteria are not well-structured to non-mainstream topics, but that's how it is.
One major way that commercial enterprises get mainstream coverage is by issuing a press release, which gets picked up and re-hashed by all kinds of publications that Wikipedia respects. So if anyone knows someone who can write an effective press release in the standard format, it would be a great idea.
Of course a press release needs a subject, but "Bitcoin Economy Passes $1 Million" would do just fine.