I don't really know how ads work, so I've never actually used them. A tax search engine seems to me like an ideal place for affiliate selling of books on tax, and ebooks that other people are selling.
You have the terms people are searching for, just match a book to the term and offer to sell to them. Something like that, but I have no idea about the market.
Use as in optimised for them and actually made an effort to learn how to make things work with adsense. What I did on the video site was embed the code google gave and that's it. That does not mean I know anything about adsense.
You have the terms people are searching for, just match a book to the term and offer to sell to them. Something like that, but I have no idea about the market.