On Monday, rival social networking services Facebook and MySpace announced that members will be able to get online video of Tuesday’s public memorial for Michael Jackson.

Singers Stevie Wonder, Jennifer Hudson and Mariah Carey are among a bevy of stars slated to appear at today’s memorial service at the Staples Center in Los Angeles.

The 90-minute event will celebrate of the life of legendary pop icon Michael Jackson, who died on June 25 at age 50 of an apparent cardiac arrest.

Facebook users will be able to watch streaming video of the Tuesday memorial courtesy of an alliance with CNN Live. While MySpace members will get the same opportunity, thanks to a collaboration with AEG.

“The memorial will be streamed real time, free, and people will be able to comment or link over to Michael Jackson’s profile,” said Sarah Joyce of MySpace Music. “We are picking up the stream and showing our support.”

A Michael Jackson page at Facebook has topped 6.5 million fans, making it the top “fan page” on the site. Free virtual versions of Jackson’s infamous glove are the most popular gift at Facebook, with more than 800,000 having been sent to members.

“Internet users across the globe can watch (the memorial) live while simultaneously updating their Facebook status and following their friends on Facebook — and other Jackson fans around the world,” Facebook said in a release this week.

On Monday, Twilight author Stephanie Meyer announced on her official website that she would no longer be using her MySpace — or any social networking site — to inteact with fans.

The novelist previously used her MySpace page to clear up any news and rumors about the books and involve herself in discussions about the novels. Now she says she’ll only communicate with fans via her official website.

“It was a lot of fun while it lasted, and I really miss the early days when I could hang out with people online,” Stephanie said on her website. “Many of you are hilarious and insightful, and I wish it was easier for me to talk to everyone the way I used to.”

Stephanie also warned fans about the possibility of online impostors. “With MySpace no longer in existence, I can now clearly state that…there is no other outlet where I communicate with people online,” she continued. “I do not have a Facebook page, and I have never had one. I don’t do Twitter. So if you’re communicating with someone online that you think is me, it’s not.”

Shannen Doherty and her stylist bring MySpace Fashion along for a day of dropping stacks at Armani Exchange and Fred Segal in Los Angeles in this week’s edition of The Fit.

The Real Housewives of New York’s Bethenny Frankel brings Myspace along as she shops and drops behind-the-scenes dish on her hit Bravo reality show.

We haven’t seen British songbird Estelle in a while. Here’s the “American Boy” star sharing some of her tips and tricks for frugal shopping in NYC with the team of Myspace’s style series The Fit.

Go behind the scenes with Ashley Tisdale as she shoots the cover for her upcoming album in Malibu shoot.

MySpace Fashion Presents: The FIT with Ashley Tisdale…..

In honor of tomorrow’s inauguration, MySpace and Ashton Kutcher’s production company, Katalyst Media, created “The Presidential Pledge.” Directed by actress Demi Moore, celebrities recorded a pledge of service about their plans to help America.

The purpose of the videos is to encourage other Americans to make their own commitment to our country and upload their Presidential Pledge to MySpace.

Other celebs featured in the video include, Eva Longoria-Parker, Courtney Cox, Kevin Connolly, Sean P. “Diddy” Combs, and Dakota Fanning.

In this week’s episode of The Fit, pantless pop sensation Lady Gaga invites Myspace along for an exclusive shopping trip to Catwalk, the singing star’s favorite vintage shop in Los Angeles.

The Spartacus star began blogging in March 2007 to promote his memoir, Let’s Face It, but has continued his posts generated interest; now he has 4,414 online friends.

He’s become inundated with too many comments and messages to answer each one personally, which was his goal when he started his Myspace.

(Wonder if he’ll ever blog on that nasty report that he raped Natalie Wood when she was 15.)

“But I want you to know that I appreciate each comment that I receive – positive or negative. And I enjoy the opportunity to talk to so many people much younger than I am.”

He says he enjoys writing the blog because he gets “personal satisfaction” from writing, Britain’s Daily Mail writes.

“I express my opinion, and I tell them that they don’t have to agree with me because it’s a free country.”

“I take it seriously,” Douglas says. “Otherwise I wouldn’t do it. I don’t have to do it, I don’t make money. It’s something that gives me personal satisfaction.”

The answer may surprise you.

According to the Associated Press, former Scrubs star Zach Braff, fashion designing reality socialite Kim Kardashian, and teen sensation Selena Gomez have the most friends out of any celeb on the social networking site.

Who knew.