Obama campaign staffer Ashley Arenson, who served as director of innovation and integration during the recent presidential election, has joined Soho Tech Labs in the role of general manager. [AllThingsD]

StumbleUpon is laying off 30 percent of its staff in a move to achieve profitability in the first quarter of this year. [TechCrunch]

A British government agency fined Playboy about $160,000 for failing to install adequate controls to prevent minors from accessing pornographic videos. Seems like a slap on the ... wrist. [Ofcom]

Private equity firm Silver Lake Management is said to be close to lining up financing to take Dell private, with a deal possible as early as next week. [Bloomberg]

Thylmann. (Chris Morris for CNBC.com.)

Fabian Thylmann, the managing partner of the company that operates erotic websites such as YouPorn and PornHub, was arrested in Begium, according to the website of the German newspaper Die Welt.

Mr. Thylmann, who serves as managing partner of Manwin, was reportedly arrested in the Brussels airport on suspicion of tax evasion. The warrant for his arrest was signed in Cologne, Germany.

While Manwin bills itself as an information technology firm, the Luxembourg-based company is best known for running pornography websites, and overseeing Playboy's web and TV operations.

There's nothing in the Die Welt article indicating whether any of Manwin's sites will be affected.

Betabeat has reached out to a spokeswoman for Mr. Thylmann, and will update when we receive comment.

In the meantime, we leave you with a list of some of the other websites operated by Manwin (per XBiz.com):

Digital Playground, Brazzers and Twistys. In addition, Manwinowns Reality Kings, YouPorn, Spankwire, Webcams Tube8, ExtremeTube, KeezMovies, Mofos, ExtremeTube, JuicyBoys and PornHub.

May your service be unaffected.

One of the images Ms. Smitheman did tweet. (Photo: Twitter, via Daily News)

Cast your eyes inland, to the once prim-and-proper Philadelphia, where a scandal-dogged local weatherman is in trouble once more. Back in 2010, John Bolaris was drugged by a couple of Miami bombshells and woke up to more than $43,000 in credit card charges. (The ongoing trial is kicking up even more embarrassing details, like the fact Mr. Bolaris is reported to have "shit himself.")

Well, last month, he got engaged to his girlfriend, former Playboy model Erica Smitheman--on the Howard Stern Show. Now the Daily News reports that on Sunday, as Mr. Bolaris slept, Ms. Smitheman staged a takeover of his Twitter account and teased his 12,890 fans with the promise of nude pics (which never materialized).

Never a dull moment in the City of Brotherly Love!

The Daily News says:

John Bolaris, who was suspended from his job as a weather anchor for Fox affiliate WTXF in Philadelphia last year amid the bombshell story that he’d been drugged and robbed by beautiful women in Miami in 2010, was back in the headlines on Tuesday after fiancé Erica Smitheman drunkenly took over his Twitter account and repeatedly promised to post nude pictures of herself.

With all due respect to the profession of meteorology, these must be the most interesting updates ever tweeted out from this account:

Hello this is Erica ...love John , he loves you all,I guess it's ok if I send you all a naked photo or two..don't tell my love

— JOHN BOLARIS (@JohnBolaris) November 26, 2012

@phenomenali__ @phillygossip @ericasmitheman word he's my man ..sex is great

— JOHN BOLARIS (@JohnBolaris) November 26, 2012

Reached for comment by Philly.com, Ms. Smitheman explained: “I am drinkinking and can’t take the haters! Lol." Nobody likes a hater.

By Sunday, Mr. Bolaris had regained the helm:

Obviously my fiance had a little party on Twitter last night, she has been by my side through everything, I love her,Hmm interesting tweets)

— JOHN BOLARIS (@JohnBolaris) November 26, 2012

Dude just can't catch a break (except for the part where his fiance is a former Playboy model).