DealMoon seems to be a typo or shorthand for "Deal Me On", which isn't a common phrase or service I'm familiar with. However, there is a website called "DealNews" (www.dealnews.com) which provides daily deals and coupons from various retailers. It's possible you might have meant that.
If you're looking for information about DealNews or a similar deal website, I'd be happy to provide more details. Could you please clarify what specific information you're seeking about DealMoon or DealNews?