I think Piknik is great - started using it before Flickr got an agreement to embed it. Loads of nice features in there.
itchypaws
Paul Clarke's weblog - I live in A small town. Married to Clare + father to 2, I am a full stack web engineer, and I do mostly javascript / Node, some ruby, python, php etc. I like pubs, parkrun, eating, home-automation and other diy jiggery-pokery, history, family tree stuff, TV, squirrels, pirates, lego, + TIME TRAVEL.