I use PS Elements to edit my photos. I believe there is a free versuin. then i use Picasa to organise web albums.
My brother uses Picasa for photo editing too, and he loves it. But I am used to adobe Photoshop, so I personally prefer PSE to edit mine.
I have Picasa on my computer, I think I got it after you said this about your brother Megan, but I haven't used it in so long I don't even remember all the features
I do know you can do sepia and stuff like that on it.