DO NOT USE
I withdraw my recommendation of this site
See post dated 7-21-12
4-Shareddotcom is a great free site that acts like a hard drive on your computer. Registration is free, simple, and takes only seconds and there is no need to enter your credit card details. Your Free account and all your files will be removed from 4shared only if you do not log in the account for 180 days.
You can store just about any file on the site that you store on your computer and you can make the files either public or private. This is good if you want to share a file with a friend for example. Just upload it to 4-Shared then send them the link and they can download the file.
The space limit is a whopping 15 GB per account. Currently 4shared sets a 2048 MB size limitation per file. Your files must not exceed the limit, otherwise they will be rejected but if the size of the file is more than 2048 MB, you can split the file into smaller parts and upload them separately using the multi-upload feature. How big is 15 GB? I currently have about 50 books in pdf format stored in my account and have used only 1% of my free space!
Another nice feature is you can do a search on the site for books, videos, music, games or photos and see if what you are looking for has been made available to the public by others. That’s not to say all downloads are legal, that is another question I am not qualified to answer, but if you are looking for file storage of file sharing, then this is probably the best site available.