Yeah i know about Burstex, they definitely used bumping services, i
reported their activities 2 months ago in SpamBuster thread. Looks to me like they stopped 10 days ago so I won't include them for now, but that can always change.
Update:
New ANN added to list. Same accounts that were working on Burstex and Crybet are now working on the HEX.
[ANN] HEX - Investment platform of the new generation