AllTheLogos.com is an extensive compilation of Logo Designs of more than 90,000 companies worldwide ranging from Gucci to Ford to Microsoft.
While the individual logo designs can be freely downloaded in GIF image formats, you will have shell out $12 via Paypal for obtaining the vector format that can further edited in Adobe Illustrator or Corel Draw software.
The Logo Database support search as well as user ratings.
AllTheLogos - An A To Z Visual Guide to Brands.
Wondering why anyone would someone pay for the eps format logos when Adobe Illustrator CS2 has such amazing Paint Tracing Tools that convert raster art into scalable vector images.