Anyone know any sites that you can upload like upto 500 mb? thanks

www.filesmelt.com can host any image you throw at it, and any other file types.

Here is a cucumber for good measure hosted on filesmelt , and underneath it is a gigantice 17+ mb image link using filesmelt

http://filesmelt.com/dl/fractalredwhiteblack1.png


As to how long the hosted content stays hosted, I don't know, but filesmelt is a good way to share large images and your files

I would have to say www.mediafire.com

I suppose the op is talking about a file sharing site and not an image hosting site... If that's the case, I suggest mediafire. Max file size limit is 200Mb but you can upload the file in parts if it is bigger than 200mb.