Frames and Search Engines
http://www.1stsearchranking.com/frames.htm

Roy, Sumantra
1stSearchRanking
2003

Abstract:

When it comes to framed sites and the effect that the use of frames by a site has on its search engine ranking, there are two schools of thought. Some people say that framed sites, if done properly, have no problems in getting good rankings in the search engines. Others claim that if search engine optimization is important to you, never use frames. In my opinion, the truth lies somewhere in between.