This got me thinking, I have never felt the need to use tinyurls, but are they actually doing damage?
How do tinyurls effect PageRank? Should hosts fear a duplicate content penalty? especially if tinyurl.com has a higher initial page rank than your own site?
Has anyone seen googles algorithm deal with these URLs in a good or bad way? Are all these great links in twitter going to waste? Surely not?
There is some debate about this topic here :
I would be interested in any views on this.