pimplink

I used to work for non-porn Net companies before going full time into the adult web biz. I used to buy GoTo placements and they do real well but are more expensive than second tier players [findwhat, 123search, etc etc].

From my experience with Goto, here's my advise--use MISSPELLINGS. They cost less and you'd be surprised at the volume of misspellings.
Using GoTo's search terms tools, find a set of related keywords that cost less or have less competition [the two go hand in hand].
Tons of lower cost but medium traffic keywords beats having to compete for a high traffic but high bidding keyword.