MrStitch - 6:42 pm on Oct 9, 2006 (gmt 0)

I doubt it'd help much if all the sites are listed at the same IP address. Google will see that and probably devalue the links.

For what it's worth, each site should almost feel like they have their own identity on the web. Content scraping from the main site won't get you anywhere.

I'm guessing that in the end, trying to manage all 50 sites would be a major pain in the a$$. Unless you leave all the sites alone and never update the content on a regular basis.

50 sounds a bit much, no matter how you slice it. However, it would make one heck of a case study into G's algo, assuming all the sites are within the same nich. Apply a different SEO strategy for each one, and see which ones climb in the serps faster.

As far as making it worth while - I happen to work for a company that has 5 websites. All sites are within the same niche. Got some pretty good links placed for one site, located on a 3 of the other ones. However, thats about all I can manage. Between link building, content writing, and other marketing ventures, I couldn't handle any more.