Given the more nebuluous nature of Cyber Monday, it's a bit more difficult to suss out the deals (PROTIP: Park your browser at Amazon.com's Cyber Monday deals and watch it like an eagle). Since most will come and go througout the day, it's not as easy to spot doorbuster deals like we had on Black Friday. However, we do know of four excellent deals that will be available all day long, thanks to the price-cutters at the Xbox Live Marketplace.

Major Nelson's blog was updated earlier with a quartet of outrageous Xbox Live Arcade deals ranging from 50 to 75 percent off. Mortal Kombat Arcade Kollection has the smallest price cut at 50%, but is still gives you three of most popular arcade fighting games of all time for just $5. Dungeons and Dragons: Daggerdale provides the longest quest, but also the highest post-drop price, as the 50% drop makes it a $7.50 value. The two best games are even more than half off as Beyond Good & Evil HD is marked down by 70%, making it $3, while Risk: Factions can be had for just $2.50.

Xbox Live Cyber Monday deals expire at the end of the day. There's also 40+ Xbox Marketplace deals that have been marked down since last Tuesday that will expire at the same time, so check those out here if you haven't yet.