But what you do have to do is to share. Share your mp3, ebooks or anything that people might want to get their hands on. Upload these files into your Gmail account (just send a mail with the file attached, to yourself). Log onto gshare, share these files and then wait for your download quota to be set. The quota rises as people request for the files from you.

Still in infancy, but this shows good potential.

gshare.in