Lots of stuff.
First, that my nephew (6 years old) is OK. His appendix burst a few days before Christmas and had emergency surgery. He pulled through, but had to go back into the hospital because of an infection and partial blockage. That cleared up without a second surgery and he's back at school and doing much better.
I'm thankful that the rest of the family and I are healthy and fine. My parents took a bunch of us on vacation the past week (my nephew and sister, unfortunately, had to stay behind), but we kept in touch and had a great time.
Also very happy to have found the perfect cat in 2010. Someone dumped her in the alley and I took her in. She was bony, a little dirty and missing about 25% of her tail. I don't know how that happened. But I got her fixed up, she's slightly plump now, and is very healthy. I've had 20+ cats over the years, but this one has an amazing personality and loves everyone. You can pass her around a room of strangers and she loves being held by anyone. Super easy to deal with - she'll go into the carrier without the least fuss, stays off the furniture and is great to have around. She'll crash on my legs at night and stay put for 7-8 hours of sleep without waking me up. And lots else. I've loved every cat I've had, but this one is special.
CanJam '10 was awesome and I had a great vacation right after it, too.
There were a few rough spots. In October, a much-loved cousin lost a tough fight with cancer. I miss her terribly, but am slightly comforted that she isn't fighting it any longer. I also got caught in a massive layoff in July - the firm dumped about 50% of personnel, including me. The good news is that another firm picked me up. I'm getting paid more, don't have the insane hours and the people I work with are nicer. I ended up better off and am very thankful for that.
And there's plenty else, but I'm mostly thrilled that my nephew is on the mend, everyone else is fine, and that I took in that little cat that no one wanted.