The one I've found that's great is
http://www.photobucket.com They give you tons of space, you can add titles and run "slideshows", it's free and there's NO SPAM! You can password them so that guests can "look but not touch" or you can lock them up for private use only. Lots of room too. That's the one I use... do a right click/properties on one of the photos I've posted about cases etc. for a sample.