I've been hugely impressed with the programming community that Jeff Atwood and Joel Spolsky have built at Stack Overflow. In a short time Stack Overflow has risen to be the dominant programmer community on the web. And it was created, in part, as a response to frustration with running into a content farm that was spamming programming queries.
Stackoverflow is sort of like the anti-experts-exchange (minus the nausea-inducing sleaze and quasi-legal search engine gaming) meets wikipedia meets programming reddit.
-- Introducing Stack Overflow
(Interestingly - and unrelated - we recently banned experts-exchange.com at blekko after tallying our user's /spam votes and noting that experts-exchange was the #1 most disliked site on blekko.)
Jeff and Joel have built a vibrant community of experts, and we felt they'd be able to help us edit blekko's programming and tech slashtags. Stack Overflow members have already suggested new slashtags that we've created, and we've begun adding their members as editors to slashtags.
The full list of slashtags (so far) that Stack Overflow will be overseeing are: