can you over do it and buy 50 domain names and point them to 1 url? as a domain Allis? would that do you better in yahoo? or would that be bad?
Pointing names of the same topic to one name shouldn't affect your rankings really. Everyone does it. There are probably a few catch22's that could affect it though. If you actually park the name IE where the name serves the same site and domain shows up in the browser bar then you might run the risk of being penalized for having duplicate content. If you just redirect the search engines aren't likely going to index the additional names.