I have a lot of experience with this actually. I had 20 domains all wrapped under the moniker "The LearnItFirst Training Network". These were all subsites that

I have a lot of experience with this actually. I had 20 domains all wrapped under the moniker "The LearnItFirst Training Network". These were all subsites that were focused on teaching/training one specific topic: * LearnSqlServer.com * LearnSharePoint.com * LearnCSharp.com etc After four years of getting emails from confused users, I moved everything to one domain -> http://www.learnitfirst.com http://www.learnitfirst.com. After the first 90 days, I haven't gotten a single "I'm confused..." email (the first 90 days after the move saw a bunch of, 'Wait - what happened to LearnXYZ.com?"). I voted one domain