There is an alternative to Flickr. It's called ipernity. It has all the functionality of Flickr and it looks like Flickr used to, back before they started with that "justified" formatting. There are minor differences in the way ipernity does certain things, but it works okay. Right now I'm still navigating my way through and setting things up. The only problem I see at the moment is that there is a limited ability to share photos. I can understand Flickr's "share" ability being protected IP but people want post on more sites than FB, G+, and Twitter. Also, pictures seem to be saved as GIFs rather than JPEGs.
Okay, after a couple of days of prodding, it looks like embedding and downloading capabilities are hidden behind a paywall.
Here's my page. An ipernity exclusive photo!
Here's the MFZ group I started. Right now it's invitation only. I'm sure that'll change in the future.
Here's a general Lego group.
Go nuts. :-)