Mark your calendar! Newsarama reports that this year’s Free Comic Book Day will be held on Saturday, May 5th. In a sign of manga’s increasing market share, Tokyopop joins DC, Dark Horse, and Marvel as one of the day’s gold sponsors. Tokyopop’s freebie is a sampler featuring five of its newest shonen/seinen offerings: Archlord, Gyakushu!, Phantom, Utopia’s Avenger, and Warcraft: The Sunwell Trilogy.

Among the day’s other notable giveaways:

• Owly & Korgi: For the younger comic book fan in your house. Top Shelf offers another near-wordless installment of crowd-pleaser Owly as well as a new series about a girl and her dog. (Guess the breed!)
• The Lynda Barry Extravaganza: Publisher Drawn & Quarterly offers snippets of Barry’s best work.
• The Umbrella Academy/Zero Killer/Pantheon City: Sneak peeks at three new Dark Horse series.
• The Unseen Peanuts: Believe it or not, Fantagraphics unearthed nearly 100 Peanuts strips that have never been reprinted. My vote for best freebie of 2007.

For more information about Free Comic Book Day, click here.