Facebook’s f8 conferences have been irregular to say the least. The first one was held in May of 2007 when the company introduced the social graph. The following year, it took place in July, and Facebook introduced new profiles and Facebook Connect.

The next conference came in April 2010. There, they introduced social plugins the Open Graph protocol, and the Graph API. In 2011, it came in September, and Facebook introduced the Timeline and a bunch of other things. Until today, that was the last time Facebook held the conference.

It came as a surprise months ago when Facebook announced it would hold the conference again, but the surprises and unpredictability should be over.

Mark Zuckerberg closed today’s keynote saying that the conference would return at Fort Mason. He also said to expect the event to take place around this time each year.

Zuck called the conference, a “good opportunity to bring the whole community together.”

Highlights from this year’s announcements include Anonymous Login, the Audience Network, App Links, and FbStart.

Image via Facebook