Feel free to follow along as different countries host their events. You can also keep up with the celebration on Twitter by tracking by following @mashSMday or #smday. Our staff will be attending meetups in New York City, San Francisco, Atlanta and Austin, so come say hello. Also, check out our New York City live video from our Watchitoo stream and the San Francisco live stream from our Justin.TV channel at the bottom.
Apologies for the slow load time. With so many videos being pulled in, it slows down the load time.
Tokyo, Japan (6 p.m., UTC/GMT +9 hours)
The Tokyo meetup is one of the first to get things rolling for Social Media Day. The agenda in Tokyo includes a lineup of presentations on best practices in social media, a Ustream case study, a panel presentation and much more. They certainly organized a social meetup where attendees can not only learn, but also connect.
Taipei, Taiwan (8 p.m., UTC/GMT +8 hours)
Today's meetups range from the hundreds to a group of a dozen people coming together to network. Taiwan's Taipei meetup demonstrates that no matter how small the gathering, it's great to connect with other like-minded folks in your community.
Chennai, India (6:30 p.m., UTC/GMT +5:30 hours)
With a big turnout, the community in Chennai organized to celebrate with social networking, games and a charity fundraiser. The meetup also had the theme of "Social Media Your Way."
Dubai, UAE (7 p.m., UTC/GMT +4 hours)
The social media community in Dubai decided to take Social Media Day one step further by celebrating it all week. The week includes events, special promotions from businesses and of course a meetup for Social Media Day, which had a turnout of more than 50.
Barcelona, Spain (8 p.m., UTC/GMT +2 hours)
Barcelona has the #3 largest Social Media Day meetup. They've built a website around the event, and promotion that included quite a funny video (with English subtitles).
Marseilles, France (8 p.m., UTC/GMT +2 hours)
The social media community in Marseilles, France organized a work session and a barbecue.
Cologne, Germany (7 p.m., UTC/GMT +1 hour)
The organizers of the Cologne meetup in Germany put together presentations and networking.
Edinburgh, Scotland (7 p.m., UTC/GMT +1 hour)
The organizers of the Edinburgh meetup are holding a dinner banquet at a new local restaurant and a chance to network with fellow social media enthusiasts.
New York, NY (6 p.m. EST, UTC/GMT -4 hours)
The official Mashable New York City meetup is the largest in the world. To keep things simple, we organized the event to enable people to socialize, connect with one another. New York is a big city, and though connections are often made online, we thought this would be great in bringing people together. We had all our NYC headquarters staff at the event and the live stream includes interviews with attendees.
Boston, MA (6 p.m. EST, UTC/GMT -4 hours)
The Boston meetup is focusing around the "State of Social Media" in various topics like dating, restaurants and small business. And of course, you can't have a meetup without networking, which the Boston event had more than 200 people taking part in.
Philadelphia, Pennsylvania (7 p.m. EST, UTC/GMT -4 hours)
We mentioned the meetup in Philadelphia in a previous post, and the event has only continued to grow all the way to the eighth biggest Social Media Day meetup based on attendees. The meetup includes networking and a version of quizzo that is incorporating Twitter, "Twizzo."
Atlanta, Georgia (8 p.m. EST, UTC/GMT -4 hours)
The Atlanta meetup is one of the largest in the world and includes a great panel discussion with our very own Christina Warren taking part. And of course, there's no fun without some DJs entertaining the crowd.
Toronto, Canada, (8 p.m. EDT, UTC/GMT -4 hours)
The Toronto meetup organized a lineup of speakers including Scott Stratten (@unmarketing). The event also includes networking with food and refreshments.
Santa Ana, California (3 p.m. PDT, UTC/GMT -7 hours)
The Orange County Register organized the meetup in Santa Ana, California, one of the largest meetups in the world today. The newspaper will host more than 300 people at their headquarters, and will include some great social media speakers.
San Francisco, California (6 p.m. PDT, UTC/GMT -7 hours)
Our Mashable team in San Francisco organized this meetup with a huge turnout and a livestream interview with Sarah Austin. Our very own Ben Parr, Karen Hartline and Jolie O'Dell will join for the event.
Check out some of the other livestreams as well: