Facebook made history by going public yesterday and making themselves the world's third largest IPO. The social network has an estimated value over $100 billion, and the worth stems from billions of devoted users. Plenty of our favorite stars use Facebook to connect with their own fans. We've rounded up a look at the celebrities you should like on Facebook and be sure to like PopSugar to stay Read more

Facebook's day in the stock market arrived today as the company debuted on the NASDAQ to a valuation over $100 billion. The $38 a share IPO price makes Facebook the biggest company in U.S. history to go public, yet other tech companies have also raised massive amounts (yet relatively modest sums compared to Facebook) of cash with their own initial public offerings. Take a look back at tech's Read more

To gear up for Facebook's IPO — one of the most important dates in Facebook's history — we've rounded up the other major milestones that have changed how we share and communicate via this beloved social network. In eight seemingly short years, Facebook has broadened its sharing tools and products to include a chatting service, a mobile app, and the ever-important "Like" button. Click through Read more

It was another chic week of social media snaps from our favorite celebrities, and this time around, we got a glimpse of a glamorous gala, food-related feasts, and some model mayhem. Stars like Rachel Zoe and Kerry Washington glammed it up for the White House Correspondents' Dinner, while Jessica Alba celebrated her birthday with dessert. Chrissy Teigen was busy boiling shrimp, Alessandra Ambrosio Read more

I know you know what I'm talking about. Everyone has one, that Facebook friend who will not stop with the constant stream of Facebook status updates. Maybe you accepted a friend request from a girl you knew in high school to be nice, only to be bombarded about her child's every giggle, coo, and poop. Or there's the friend who's bored at work and needs to let you know whenever he desires a soy Read more

Ben Affleck is on Facebook! More and more of our favorite celebrities are joining the world's largest social media network, and Ben is the latest to launch his own timeline page. Ben shared photos from Africa that were taken during one of his many philanthropic trips to the continent. He founded a nonprofit organization, Eastern Congo Initiative, in 2009 on behalf of the people living and working Read more

Facebook is an ever-evolving thing. One minute you love it, the next minute it goes and changes something and you're back to learning how to use it all over again. Such is life, I suppose. This time, Facebook has added even more ways for you to share what you're doing and when with Timeline apps. Timeline apps connect with some of your favorite websites and mobile apps to share your Read more

Mark Zuckerberg introduced Timeline, which puts all of your activity in chronological order in a visually pleasing way, during the F8 conference earlier this year. Almost like a personal webpage for Facebook, this timeline beautifully shows off your large photos, status updates, and activity, but there's also a space for your favorite apps and a big profile photo up top. Privacy is top of mind on Read more

According to a new report released by Facebook-based mobile dating app Are You Interested, finding a date via mobile phones is on the rise. Forget looking for love using dating websites — it's all about hooking up with like-minded people that hang out in the places you love, share similar interests, and are in your near vicinity. Are You Interested polled its 50,000-plus members to find out how Read more

The day has finally arrived: Facebook has released its iPad app to the masses. The free app allows you to see big, beautiful photos and full-screen newsfeeds instead of the tiny, iPhone-sized screen you're used to seeing on the tablet. Features to look forward to include pinch and swipe to move screens, zooming in on your friends' pics, and smart navigation that lets you message, chat, and post Read more