Despite the half-hour delay in trading, Facebook’s IPO kicked trading off with a bang Friday morning.

Facebook announcd it share price at $38 yesterday afternoon, and in early trading the social network’s stock has jumped 12% to $42.50.

Facebook share have even hit a high of $43.20. Faithful users of another social media giant, Twitter, predict that Facebook will close the trading day at $54 a share.

With the $38 per share opening, Facebook was able to raise a whopping $16 billion—also making it the largest Internet IPO of all time. Facebook has sold 421.2 million shares, putting it’s valuation at $104.1 billion.

Trading in social media industry seemed to come to a grinding halt with the introduction of Facebook to the market.

Zynga, the social gaming company that enjoys a healthy symbiotic relationship with Facebook, saw it’s stock fall 13%, or $1.10 a share, bringing it to an all-time low of $7.17 a share.

LinkedIn is also down 2.2% and Groupon has fallen nearly 6% as well.

It looks like our feathered friends have reached an important milestone.

Rovio, the developers of the wildly popular Angry Birds game series, announced today that over one billion Angry Birds games have been downloaded.

That’s a lot of fowl-flinging, pig-slaying action!

The one billion number counts downloads from all of the Angry Birds games, including the original Angry Birds, Angry Birds Seasons, Angry Birds Rio, and the latest installment, Angry Birds Space.

To date, this is the first game app that has achieved such a milestone.

Additionally, the feat proves that video games do not always have to cater to a hardcore audience to be successful, selling games for low prices can still be profitable with a good product, and that solid gameplay and level design can easily compete with high-end graphics and game engines.

As a thank you to the Angry Birds faithful, Rovio put out a short video which hints at more exciting things to come.