if your site is sticky enough that you always get productivity from SE traffic, then a diet that includes a well balanced pay per click SE campaign might help supplement any reindeer games played at Yahoogle.
Overture, Findwhat, Kanoodle, and Sex.com all provide guaranteed targeted SE traffic, by the click. Some are more expensive than others. Still, economical if SE's work and your sales are proven with them.
New sites and new users to Pay Per Click will have a learning curve that will either drive the frugal webmaster away cursing, or help him develop a tool that in a pinch will virtually guarantee revenue if a strategy is developed successfully.
this is not a wholehearted endorsement for ppc traffic - as it is not for all, only the patient and career minded among us.
