Online privacy may be a thing of the past — even newspaper commenters are asked to register their own names these days on sites like ours — but there are still foxholes for satiric, pseudonymous writing. It used to be blogs, but like everything else, the action has moved to Twitter. Here are five to follow, the first three with local angles. But act soon. Once the curtain is drawn, the fun tends to be over.

Who: BP PR guru, dispensing spin about oil spill disaster.

www.twitter.com/bpGlobalPR (99,016 followers)

Sample tweet: What a gorgeous day! The ocean is filled with the most beautiful rainbows! #yourewelcome #bpcares

Behind the mask: Unknown. On Friday, a bitter twitterfight broke out between Wired writer Mat Honan, CNET reporter Caroline McCarthy and web designer Mike Monteiro about who, exactly, was behind these dark-as-spilled-oil tweets. The kerfluffle seemed to end in a draw, as happy hour beer o'clock struck, with the mystery unsolved.

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Who:SF Bay Guardian owner, Bruce "Bossy" Brugmann.

www.twitter.com/Bossy_Brugmann (77 followers)

Sample tweet: WOKE UP TO BUM READING MY PAPER ON FRONT PORCH. "CHATTED" ABOUT CONTENT DELIVERY UNTIL COPS ARRIVED.

Behind the mask: Some local media types' names have been bandied around — SFist's Brock Keeling, Uptown Almanac's Kevin Montgomery — but no one has stepped forth to claim prize.

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Who: Jasper Slobrushe, parody of SF's fancy ice creamery Humphry Slocombe.

www.twitter.com/jasperslobrushe (404 followers)

Sample tweet: New: Top Kill sundae. Olive oil ice cream with fish, sea birds and a bunch of mud poured on top of it. 50 percent chance it will taste okay.

Behind the mask: Someone who really doesn't have much love for Humphry Slocumbe's voluminous Twitter feed. But Jasper is trailing behind a bit. Humphry is holding strong at almost 300k followers.

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Who: Drunk Hulk (self-explanatory)

www.twitter.com/drunkhulk (25,435 followers)

Sample tweet: KICK OFF YOU SUNDAY SHOE! PLEASE LOUISE! PULL DRUNK HULK OFF KNEE! JACK GET BACK BEFORE CRACK! LOSE YOU BLUE! CUT FOOTLOOSE

Behind the mask: Who knows? The Hulk didn't even fill out his nomination info for Twitter Shorty Award.

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Who: Mad Men character Betty Draper

www.twitter.com/bettydraper (26,186 followers)

Sample tweet: Don't they ever clean the ashtray in this phonebooth?

Behind the mask: Another unknown. What's fun about Betty is the whole universe of Mad Men characters that Betty links to —including little Sally Draper, nosy neighbor Francine Hanson and the ghost of Betty's dead father.