This logo needs to quickly instill trust and professionalism (would you trust you private files to a backyard operation?) while also having a soft consumer edge so people know it's going to be an easy process and don't get frightened off become giving it a go.
You logo should stand out and be unique & memorable, it needs to work across different formats; primarily the main website, but also small screen-size iPhone/mobile devices and small format favicon.ico & right-click context menu representations. i.e. the logo needs to scale well and still be unique and recognizable when it's shrunk.
There are many common themes you can pull in with "file sharing", please try and make something relevant (i.e. a user should be able to look just at the logo and know what the site is about), but please make something unique and don't just go with the flying-folder (a.k.a windows copy animation) type logo.
The brand "FILES.COM" can be represented in any typeface, with any font size, and any character case - but it needs to include the entire domain 'files.com'. e.g. "files.com", "FILES.com", "Files.com", "FILES.COM" are all acceptable - choose the one that works best with your design. The ".com" can be on a separate line, or separated from "Files" if that is more suitable.
Please only include a single version of each variant (not the same logo just in different colors). If we think it will look better in another color we'll provide that feedback. Our preference is towards blue or green for the logo but feel free to suggest.