The pioneering on-demand cloud gaming service, OnLive, is offering all users a free five-day rental of both Homefront and Red Faction: Armageddon during its Frag Feast promotion this Thanksgiving weekend. In addition, you can buy your first full OnLive game for just one dollar, an offer that includes such recent blockbuster titles as Batman: Arkham City, L.A. Noire and Saints Row: The Third.

Having launched in June 2010, OnLive is attempting to revolutionize the way that games are distributed and played. All OnLive games play instantly on demand over the Internet via a small browser download on almost any PC or Mac, or on a HDTV via the OnLive Game System, with no discs, no big game downloads and no high-performance computer required.

As well as offering a place to instantly play the latest games, OnLive provides some unique community features, including a spectator mode, which allows you can watch and comment on hundreds of games being played live. OnLive currently has Android and iOS clients that support this spectator mode, and it is planning on rolling out a full gaming service on these devices this fall, alongside a tablet compatible wireless dual analogue controller.

Additional deals will be also be announced on the website, as well as on Facebook  and Twitter throughout the weekend, featuring dozens of titles from OnLive’s comprehensive library of over 175 games, including some of the season’s biggest blockbuster titles.

If you haven’t yet tried the OnLive service, now would seem a great time to do so. Your experience with the service will depend a lot on the quality of your internet connection, but with a no-fee sign up, and hundreds of games available to instantly demo, it is an innovation that is definitely worth checking out.