http://photos.fotango.com/cgi-bin/index.cgi.
Always been happy with the above for quality and service, although not the cheapest. ...It advertises 'Upload Software' but you don't have to use it; just
Browse to the relevant file on your hard drive, open/upload. ...A bit hard work without Broadband, but perfectly possible; just a matter of patience (and having something else to do at the same time!)