It's been three years since I've rebranded, but my branding is actually older. Though I've been working in the arts since I was 13 (long story), I didn't have a logo until 2006. It started in college, about 5 years in. I wanted to go into corporate identity and came up with the tagline "from idea to identity". For the mark I combined a lightbulb and a thumbprint.
With the new direction of the site which I'm totally over a rainbow about (moons are less cool), I've already started sketching logos, playing with color palettes, and researching new site layouts. There's so much more to come. So many surprises on the way.
I'll be going into the process of rebranding over the next few weeks. Check back every so often to play Darwin observing the design world. The evolution hasn't stopped here!