OK, so I am a late adopter. Flickr is a great place that any photographer should be aware of. And not just be aware of, but posting in.
So it shouldn't be a big surprise to me that half of PlanetMySQL.org bloggers have Flickr accounts. After posting my initial photo sets I registered my first few contacts. By looking at my contacts' contacts, you'll likely find most any photographically active MySQL blogger.
There's a lot to learn and to use (what's the difference between a friend and a contact? does it matter? will friends merely labelled as contacts be offended, or vice versa?) but it's an excellent way of sharing pictures.
The topic of my first sets? Snapshots from a recent visit to Moscow and Sergiy Posad, with local MySQLers in both Development and Support.