Variety of File Formats
SEOChat memeber Jasontnyc talks about the possiblilty of linking from a page to various file formats like .zip and .exe giving extra weight to them for ranking.
The reasons I think the theory is valid:
A variety of file types usually means a site with lots of information such as user guides, service info, etc which could be seen as a benefit
Sites with .zip links probably are offering software downloads which could be seen as a benefit
Until it's tested, that's exactly what it looks like of course, pure speculation but it is an interesting theory is it not?
The thread itself is interesting as a whole too, check it out... [ Warning ] Dodgy Avatar Alert!