Source: http://feeds.gawker.com/~r/lifehacker/full/~3/aUOLehuD_0w/zapr-makes-file-sharing-painless
Windows only: Zapr is a new file-sharing application that promises to make remote file sharing extremely simple. Users download the Zapr application, set up a free account, and can immediately begin sharing files with friends. Only the person doing the sharing needs to have the application installed, all others simply need the URL the file sharer gives them. The files are hosted locally, with the Zapr server only providing directions between the file sharer and the people seeking the file. Files can be shared unprotected or with passwords. There is no restriction on file type or file size. For another simply way to share files without FTP, check out GBridge. Zapr is freeware, Windows only.