MLHmptn - 1:34 am on Mar 20, 2009 (gmt 0)
I am involved in doing just as you say...I have bought thousands of domains and they get indexed and come up in the SERP's for their long tail phrases and on these sites I link them to a "main" site. The way I look at it is $3.95 for a year is a lot better than AdWords at $39.95/day for these long tail phrases and obviously these websites are providing "relevance" signals to Google because or main sites jump in SERP's as well for the targeted phrases. I used to spend about a half million dollars in advertising and started to see the ROI drop significantly so I switched perspective and took advantage of the fact that Google uses the domain name as a ranking factor. Try it out, buy a few long tail phrased domains and use them as a sort of advertising page to link to your main sites content. It works wonders! Not only does Google like it but so does MSN/Live.