Comscore released its October 2008 data from its Video Metrix service today, reporting that U.S. Internet users viewed 13.5 billion online videos during the month, representing an increase of 45 percent year-over-year.

Perhaps the most interesting data tidbit is that Hulu moved up to the sixth position in the rankings (235 million videos viewed, which is a 1.7 percent share). Of course, Google sites (which include YouTube and its 40 percent share of all videos viewed) once again ranked as the top U.S. video property with nearly 5.4 billion videos viewed (representing a 40 percent share of all videos viewed).

Fox Interactive Media ranked second with 520 million videos (3.8 percent), followed by Yahoo! Sites with 363 million (2.7 percent), and Viacom Digital with 305 million (2.3 percent).