All the cool kids are on Twitter. No, seriously, even your mom has one by now, don't laugh, she's cool too -- in her own right. If you aren't tweeting about the creamer in your coffee or how much you love Ellen DeGeneres or American Idol yet, you are totally missing out. The juicy celebrity Twitter feuds alone are reason enough to join. Like, did you see what Justin Gaston tweeted about Miley Cyrus after they broke up? I digress, but really, this virtual water cooler doesn't only stream celebrity gossip or boring personal musings (turns out people do care about your new gardening rake); it actually can be a very useful tool for getting important information. And by important information, we of course mean all things beauty related.

All kidding aside, Twitter is a great source for getting up-to-the-minute, scratch that, up-to-the-second makeup tips, skin care advice, insider hair care information, links to free beauty samples and deals, and so much more.

For those that have a mixed passion for celebrities and beauty news, you are not alone. Follow these 5 celebs for a nice mixed bag of 411.

1. Denise Richards dishes on her fab facials and workout routines.
2. Joan Rivers talks smack about celeb style and makeup mishaps (hopefully she includes her own from time to time).
3. Heidi Montag provides hours of endless snickering with her misspelled words and details of her skin care regimen.
4. Lady Gaga tweets about wigs, makeup and details of her shows.
5. Sarah Silverman. So we'll admit she doesn't tweet about beauty often, but this chick is just plain funny.

And now � on to the tweets that offer up serious beauty banter. Whether you're just getting your Twitter bird feathers wet for the first time or are a 30-tweets-a-dayer, you'll want to follow these beauty tweeters -- stat.

Arlt, the Director of Makeup Artistry for MAC Cosmetics, provides insider details on hot new makeup trends, and gives behind-the-scenes accounts of celebrity photo shoots. He also happens to be super likable, which is quite a feat considering that we're basing this off of an internet feed.

Favorite tweets:
"Ok kids....it's that time again....CLEAN THE KIT!! Two shoots yesterday left my kit lookin' like the day after the Fred Segal sale!!"
"So far, Fall seems to be tons o' glitter!! Makes me happy as I think I was a crow in a past life- I LOVE shiny things!"
Follow MAC_Gregory_A .

Beauty Counter is a great twitter follow for those interested in free product giveaways, contests and "Beauty Bargain Alerts" � so it's pretty much for everyone. Who doesn't love free or cheap stuff? And more importantly, who doesn't love free or cheap stuff that you're constantly updated about? Following this tweeter is a no brainer.

Favorite tweets:
"Have a great weekend! Check out our blog on Monday to win a $100 SkinCareRx Gift Card. #giveaway"
"20% off and Free Shipping on $50+ at Folica."
Follow beautycounter.

Elessa is a fanatical youtuber/blogger/tweeter that has made countless beauty how-to videos that she links to via her tweets. She is fun, silly and practically responds to every fellow tweeter. So if you're looking for some beauty support or camaraderie, she's the girl to follow.

Favorite tweets:
"Wow.. I can't believe I grew out my bangs just for this tutorial :) xo"
"ew I don't like having 3D Nails.. all this stuff on it stresses me out.. dunno why"
Follow pursebuzz.

Fashion!Beauty!Fun! tweets about � you guessed it: fashion, beauty and fun. From cool beauty facts to random pop-culture ramblings she continuously keeps Twitter entertaining.

Favorite tweets:
"Fact: Max Factor worked exclusively on Hollywood Starlets until 1937, when he opened the Max Factor Hollywood Make-up Studio for the public."
"Watching #theBachelor makes me remember why I have always had more male friends #girlsaresomean"
Follow FaBuFun.