Full (red) circle: Twitter shares its #XboxMemories

Eight years of broken hardware and stellar gaming leave a lot of great memories, and the industry took to Twitter to give the Xbox 360 its due send off.

Twitter cofounder Jack Dorsey is terrible at Vine

You'd think Twitter cofounder and Square CEO Jack Dorsey would be a whiz at social media. But his posts to Twitter's young video-sharing service Vine are a mix of weirdly creepy and just-plain-boring clips.

Twitter cofounder raises money from Jack Dorsey, Bono, Al Gore for mysterious startup Jelly

In a blog post today, Biz Stone announced closing a funding round led by Spark Capital with participation from SV Angel. An elite group of individual investors also contributed, including Jack Dorsey, Bono, Reid Hoffman, Steven Johnson, Evan Williams, Al Gore, Greg Yaitanes, and Roya Mahboob.

Twitter ‘Hate Map’ shows where racist, homophobic, and offensive tweets originate

Students at Humboldt State University in California individually reviewed 150,000 geocoded tweets containing racist, homophobic, or otherwise offensive terms to build a "hate map" indicating where people in the U.S. are most bigoted.

Twitter acquires data visualization startup Lucky Sort for … revenue engineering?

Twitter has acquired data visualization startup Lucky Sort, possibly to bolster its ad sales and reporting tools.

Twitter acquires ‘big data’ and large-scale computing startup Ubalo

The startup was working on simple ways of scaling code beyond single machines. Using the Ubalo infrastructure, developers could write code for multiple machines with no additional overhead.

Obama steals new privacy head away from Twitter

Twitter is losing its legal director Nicole Wong to the White House in the name of privacy. President Obama has tapped her as his newest Chief Privacy Officer.

Twitter’s video-sharing Vine exploded 200% last month

"We may be witnessing the rise of Twitter's recently acquired Vine," Compete.com's Conor O'Mahony said.

2M Facebook fans better than Super Bowl ad, celeb endorsement … or Twitter followers

Facebook fans are the holy grail of small business, according to a recent study by Staples.

Twitter improves user experience and trends on iOS, Android, and its Vine app

Twitter updated its iOS and Android apps today so you can see more trends in more places. The company also improved video playback on Vine.

Twitter Ads now available to all U.S. businesses

After only being available to select businesses for about a year, Twitter Ads is now available to almost all U.S. companies that want to use it.

Fred Wilson: Foursquare reminds me of where Twitter was a few years ago

All-star investor Fred Wilson has weighed in on the ongoing saga of location-based service Foursquare and whether the company is in trouble. He says the company is fine.

Developer says Twitter should shut him down. He may be about to get his wish

Twitter is finally talking to one developer who created an advertising app he said should be shut down by the social network.

Alibaba and China’s Twitter form social commerce partnership in $586M deal

China's take on Twitter, Weibo, sold an 18 percent stake of itself to major e-commerce site Alibaba today. The two hope to make hundreds of millions of dollars for the social media company while building out a mobile and social commerce mode for Alibaba.

Twitter updates its Mac app, reinforcing its current consume-first, tweet-last philosophy

Not only did the app's marketing pic showcase Twitter's current brand messaging around watching, getting, and reading, all of which are higher on the priority list than, God forbid, actually tweeting, but the app itself is designed for consumption, not creation.

Twitter’s upcoming two-step sign-in system could prevent the next big hack

Twitter wants wants to make it tougher for bad guys to crack high-profile Twitter accounts. It's about time.

Associated Press Twitter account hacked, tweet about White House attack ‘untrue’

The AP Twitter account was breached today. The hackers sent out a bogus tweet about an attack on the White House.

Twitter and marketing company Starcom reach $200M+ ad deal

The deal is for "special access" to advertising slots, as well as research data and new, as-yet-unannounced advertising products, in return for which Starcom has committed to spend $200 million -- or more -- of its clients' money.