Sony Online Entertainment is queuing up a couple of noteworthy shindigs in EverQuest II and Free Realms.
Norrathians will be celebrating Erollisi Day from February 7th through the 20th, and there are plenty of contests, quests, and love-soaked goings-on to keep everyone happy. Free Realms' Festival of Hearts lasts a bit longer (February 7th through March 8th to be exact), during which time players may partake of Valentine's Day-themed environments, quests, and reward items.
Finally, Star Wars: Clone Wars Adventures is re-introducing a few Valentine's Day items to its StationCash markeplace, and you'll find more info on each game's celebration events at their respective official sites.
[Source: SOE press release]