K-1 Global has been on Twitter for a bit now, and they're also on Facebook, here.
We can confirm that it's the official page, as it's linked to from K-1 Global's website. I'd advise all kickboxing fans with Facebook to "Like" their Facebook page to stay up to date and see other content that K-1 shares there. They've posted a photo album from when they were in Madrid, including the inside of the Palacio Vistalegre, which holds 16 000 people and where K-1's first event of the year will be taking place.
Along with the Facebook page, K-1 revamped their website, k-1.tv also. Coming soon are fighter profiles, photo galleries, and even a community to name a few things. The newly revamped website is a lot more accessible than the original one. I'm looking forward to the full version of the site, coming soon.