We all know we have seen this form of advertising small text advertising that can reach a geared audience, surfing sites. But do they work? The key to these forms of ads is to right keyword phrases at least twice in your dialog.
Sample advert on Micro Chips
If your selling, micro chips list it in the advertisement at least twice if you can highlight this word or bold it do so. Because you are sending the message across to the reader you deal with micro chips. So keep this in mind an make your sentences short an to the point your not writing an article here just a couple lines of sales pitching.