Forget all the rest, seriously, you really can't go wrong with
Fotopic, they are truly the best... PM me if you really want any specific information or a look at my own Gallery...
Fotopic
Loads of free space, great connectivity and availability and extremely flexible... unlike many others that I have tried before. Trust me, these guys rock! If you want unlimited bandwidth, which is hard to come by these days, to be fair, you can get that also at a reaonable rate.... otherwise their standard free package manages to suit most requirements... I've experienced many other online galleries, either sites I've signed up to before or those that my friends use and I have to say, this one beats them all hands down.
You know it makes sense!