Most vanity services have shut down, period, because there just isn't enough interest in it or the interest that's there is for vanities so difficult to generate (on average) that they'd have to charge fairly high fees up front which discourages people from requesting those vanities.
While a vanity pool that would work similar to Bitcoin mining pools might bring about a change in that, the lack of interest makes that a lot of effort in development that doesn't seem likely to pay off. Couple that with all the efforts to discourage vanity addresses (not sure if it was this thread where somebody mentioned a service that would involve vanity addresses as part of an identification scheme, but... that's a bad idea), or even discourage the use of addresses at all (the whole "users should never have to see an address" mantra), and the waning popularity is easily explained.
Odds are that vanitypool (
https://vanitypool.appspot.com ) is one of the few still reliably operational.
Looks like vanityamp finally disappeared (too bad, was a slick site)
http://vircurvault.com/order/bitcoin/vanity/custom is also still up, but pricing is fairly high (1-4 characters at
BTC0.05 means you'd better generate that yourself).
No idea if gadman2 (
https://bt.irlbtc.com/view/270180 ) or devthedev (
https://bt.irlbtc.com/view/347591 ) still offer their services.
I think there were a few other people offering to generate vanity addresses on a one-off basis. Heck, you could post your public key part here along with the desired vanity, see if anybody's interested in trying to generate it, and work out the details of payment (escrow etc.) between the two of you
