If you use other Google products - Gmail, Docs, etc then Picasa is a great tool. I use it for uploading/storing a lot of my photos. You can download the Picasa app on your computer, it will scan your hard drive for photos, catalog them, and you can upload from there. It's a very slick program. Flickr is a wonderful tool as well. If I wasn't using my Google account as much as I do, Flickr is where I would be at.
Photobucket here too... One ? I had...when loading multiple pics to a thread - how do you get it to load as thumbnails so as not to fill up a whole page?
Here is some advice, nothing is free.... some sights share your info and pics please read what you agree to. photobucket has a search program and a share program and if you send a pic someone can look thru your whole album, you can lock them down but most people dont think about it. and once it's on the web it's fair game. same thing with facebook info and pics... beware they are sharing all your personal info.and pics you have to go on there site and reset who can view things.... case in point someone took a video from my facebook page and put it on youtube without my knowledge or consent and at the time my settings was friends of friends, so be carefull when something is free there is a reason. Here is news story about some facebook issues and who is trying to get your info. http://news.yahoo.com/s/pcworld/20100729/tc_pcworld/thefacebookdatatorrentdebacleqa