Facebook’s IPO was obviously the single most discussed topic on Twitter today. The good folks over at social media data platform DataSift monitored what Twitter users were saying about the IPO throughout the day and came up with some interesting conclusions.

Just after the markets closed on its first day of public trading, Facebook amended its S-1 with a complete prospectus detailing how much stock each underwriter got to sell. Morgan Stanley, the lead-left bank, received 162.1 million shares ($6.15 billion worth) followed by J.P

While Mark Zuckerberg rang in Facebook’s first day as a publicly traded company back in Silicon Valley , TechCrunch TV was in New York City to report on the scene from the NASDAQ stock market’s Marketsite building in Times Square. The opening bell and initial trades were a bit anti-climactic in person, as we’ve written — NASDAQ is a digital exchange after all, so there’s not too much to see visually.

After intense build-up and a decent initial pop when the market opened, Facebook’s stock ended the day at $38.23. Some analysts are calling the IPO a dud because the stock did not trade well above its offering price

GameStop is hurting. Same store sales fell 5%-11% and revenue was down 17% to $2 billion

Facebook has acquired the mobile gifting and commerce service Karma, according to a blog post on Karma’s website . This is the social network’s fifth mobile-related acquisition in 2012 after Lightbox , Tagtile , Glancee and Instagram . Launched just months ago in December, Karma positions itself as a user-friendly way for consumers to pick out and pay for gifts culled from a curated catalogue of items.

While, arguably, you’re not going to convince many kids to give up their Topps or Pokemon cards for these things, it’s nice to know they exist. They’re 3D Printer trading cards featuring some of the best 3D printers in the world

Facebook has just acquired mobile commerce startup Karma , which makes apps for gifting friends and family. The terms of the deal are undisclosed but 16 employees of the startup will be joining Facebook

The underwriters of Facebook’s $16 billion debut on NASDAQ fought to the finish to keep the company’s shares above last night’s final price of $38 a share.

Gillmor Gang – Gabe Rivera, John Taschek, Robert Scoble, Kevin Marks, and Steve Gilmor.