http://www.myfonts.com/WhatTheFont/Another cracker of a web-tool. Upload the logo and know what is the font... as simple as that
This is certainly another cool service after i the TinEye which can recognize image content and search for it.
The UI for this is also pretty good... it automatically splits image into multiple alphabets and you have chance to combine things like i or j where on char is split into multiple... Alas it does not allow splitting the image when if fails to split the characters properly.
I also found another "paid" tool that does all this far too quickly and easily... plus 1000+ other options.
http://www.imagaro.com/
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