While I was waiting to get a critique on my WIP, I started thinking about a new project and researching character names. Some names go in and out of style, while others that enjoy regional popularity. Here are some websites that might help other writers figure out what to name characters.
For characters in the United States, The Baby Name Wizard allows you to find the popularity of names from 1880 to 2012. The Social Security Website tracks names given to babies in the US by both year and state. Flowing Data has interesting graphics depicting trendy baby names by region and year. For the most common names around the world, go to Baby Center.