Adult Link Building Suggestions

Hey guys,
So just curious - what services do you guys use for your adult link building purposes other than things like xrumer blasts?

I already know where to go for xrumer blasts and social bookmarking for such sites, but I need more sources/service providers for more quality backlinks and Im really struggling here!

PS: Im not talking full on porn sites with tits and ass everywhere on the home page, I need this done for "adult dating" and "swingers dating" web sites where home page content is "friendly" (ie: no naked chicks everywhere n stuff )

TIA!

Does it have to be a service? I had several ways I boosted mine, but I did it all myself.

Doesnt have to be - I can do manual work as well Just need to get my sites ranked

I could use that too... but for me they can be any kind of porn sites...

we can submit your adult urls - crork.com

hmmm, I already said I have social bookmarking covered - thanks :S
Need more...