The Key Social Media Influencers 2010

• Dan Zarella: Often called a social media scientist Dan does a great job of collecting tons of data and making sense of it all by spotting trends.  He has interesting findings on which types of tweets have the best chance to be re-tweeted.  He is a Product Owner at Hubspot and is the author of The Social Media Marketing Book. @danzarella
• Gary Vaynerchuk: Social media sommelier. Vaynerchuk may be the one who benefited the most from social media. Although his antics are somewhat controversial, he has proven that passion + effort + social media = a healthy return. He has helped grow his family wine business from $4 million to $50 million through the use of social media. He is best known for his Wine Library TV — a series of videos giving insights on wine. He is also author of “Crush It,” a short book detailing how he uses social media and that anyone can do this. @garyvee
• Liz Strauss: Liz Strauss is an influential non-celebrity blogger helping people to learn. She’s been called an idea machine and is the CEO and founder of SOBCon, author of the popular Successful-Blog.com.  She likes to provide the human touch. @lizstrauss
• Biz Stone: Co-Founder of Twitter.@bizstone
• Brian Solis: Solis is principal of FutureWorks, an award-winning PR and new media agency in Silicon Valley. His new book “Engage” has a foreward from Ashton Kutcher. Solis is cofounder of the Social Media Club and is an original member of the Media 2.0 Workgroup. @briansolis
• Jessica Smith: A Maryland Terrapin and VP at Fleishman-Hillard she recently entertained her client Chevrolet down at SXSW.  She developed her skills at Sapient back in the late 90’s.  @JessicaKnows
• Mari Smith: Social media business coach. Fast Company called Smith the “Pied Piper of Online.” She has intimate insight on social media strategy for small business and is an expert on Facebook Fan Pages. Her smile, Canadian accent and ebullient personality have attracted many fans and followers — she is a great case study in developing ones own brand. Smith combines a good mix of energy and honesty. She is also well known for her fun hats in her Twitter profile photos. @MariSmith
• Shiv Singh: Singh is Avenue A Razorfish VP & global social media lead. He is also the author of “Social Media for Dummies.” He is a regular author and contributor to numerous Avenue A Razorfish white papers and studies on social media. One such report that is worth a read is: “Fluent: Razorfish Social Media Influence Report.” @shivsingh
• Clay Shirky: Shirky, an adjunct professor in NYU’s graduate Interactive Telecommunications Program (ITP), is one of the world’s most requested speakers on social media. @cshirky
• Peter Shankman: Shankman is perhaps best known for founding Help a Reporter Out (HARO). In addition to HARO, he is the founder and CEO of The Geek Factory, Inc., a boutique marketing and PR strategy firm located in New York City, with clients worldwide. @skydiver
• Dharmesh Shah: Co-Founder of Hubspot, Dharmesh is a very entertaining and informative social media speaker.  He is co-Author of the best selling book “Inbound Marketing.”
• David Meerman Scott: Marketing strategist and author. Scott was well ahead of the curve in 2007 with his best selling book, “The New Rules of Marketing & PR.” He appears to have another winner in the book, “Inbound Marketing: Get Found Using Google, Social Media, and Blogs” — as a contributing author and editor. Scott is very generous with his time and is an active contributor across the Web and on the speaking circuit. @dmscott
• Jeremiah Owyang: Partner, customer strategy, Altimeter Group. Owyang’s tremendous insight from his tweets is enough to make this list. Aside from his work at Altimeter he is also a columnist for Forbes CMO Network. He is also a great complement to Charlene Li at the Altimeter Group. He excels at interpreting news and, as an industry analyst, tells us “what it means” and is a great reference for the market. @jowyang
• Lee Odden: Odden is one of 25 online marketing experts featured in “Online Marketing Heroes,” published by Wiley, and has been cited for his search and social media marketing expertise by The Economist, US News & World Report, and Fortune magazine. Odden is the CEO of TopRank Online Marketing. @LeeOdden
• Amber Naslund: Director of Community for @Radian6. She loves to dissect the collision of community and business within social media. @AmberCadabra
• Dave Morin: Former senior platform manager at Facebook. Morin was named as one of the “100 Most Creative People in Business” by Fast Company in 2009. Rumor is he is doing some collaborative work with Sean Fannigan. @davemorin
• Scott Monty: Digital and multimedia communications manager at Ford Motor Company. Monty practices what he preaches by having ongoing conversations with car buyers and influencers. While he is a marketer rather than an engineer, his new type of thinking and passion has changed the way Ford thinks about everything, and is why Ford is looking more like a Macintosh computer and less like a Model T. Some of Ford’s new cars will be enabled with Wi-Fi. Much can be learned from Monty’s intelligence, foresight, and fortitude. @scottmonty

• Amy Jo Martin: Has over 1.3 million followers on Twitter, she works with Shaq and other professional athletes/franchises.  She recently hosted a few NFL teams at the Social Media Clubhouse during SXSW. @digtialroyalty

• Valeria Maltoni: Her blog, ConversationAgent, is recognized among the world’s top online marketing blogs (among the top 25 on Advertising Age’s Power 150, as well as three categories in Guy Kawasaki’s Alltop). Maltoni was handpicked by Fast Company as an expert blogger to write about creating conversations between the marketer and customer. She built one of the first online communities affiliated with the magazine. @ConversationAge
• Charlene Li: Founder of Altimeter Group and coauthor of “Groundswell” (along with Josh Bernoff), she is also a great public speaker and has presented frequently at top technology conferences such as Web 2.0 Expo, SXSW, Search Engine Strategies, and the American Society of Association Executives. Her next book is “Open: How Leaders Win By Letting Go.” @charleneli
• Guy Kawasaki: Founding partner at Garage and cofounder of Alltop. Kawasaki describes Alltop as an “online magazine rack.” Kawasaki has written nine books and always seems to be one step ahead of the curve. I can personally thank him for turning me on to Twitter long before CNN started using it obsessively. If you have a chance to read Kawasaki’s bio it is well worth it — a very interesting background (Apple disciple) and an avid hockey fan. @GuyKawasaki
• Mitch Joel: Marketing Magazine dubbed him the “Rock Star of Digital Marketing” and called him, “one of North America’s leading digital visionaries.” The author of the book, “Six Pixels of Separation,” he’s also a former board member of the Interactive Advertising Bureau of Canada. @MitchJoel
• Brian Halligan: Cofounder and CEO of HubSpot. Halligan is also coauthor of “Inbound Marketing,” which has been flying off the shelves since its Octoberrelease (coauthors are Dharmesh Shah and David Meerman Scott). Aside from being wicked smart (Sloan Fellow at MIT), he is a normal dude who enjoys playing guitar, tennis, and taking in a Red Sox game. @bhalligan
• Paul Gillin: He was editor-in-chief and executive editor of the technology weekly, “Computerworld” for 15 years. His 2007 book, “The New Influencers” was awarded a silver medal in the business category by ForeWord magazine. @pgillin
• Maggie Fox: Founder and CEO of Social Media Group.com, one of the world’s largest independent social media agencies. Ford’s social media agency since 2007. @maggiefox
• Sarah Evans: A self-described “social media freak,” Sarah initiated and moderates #journchat, the weekly live chat between PR professionals, journalists and bloggers on Twitter. She is also guest writer for Mashable. @prsarahevans
• Frank Eliason: He put customer service on the social media map by his pioneering on Twitter with Comcast.  Great guy and it is transparent in everything he does. @comcastcares
• Sam Decker: Sam has been a thought leader in the space since his days at Dell.  As the CMO of Ausitn based BazaarVoice he is helping to lead the charge on Social Commerce and truly helping Socialnomics become a reality by among other things combing social data with rating data (what do my friends buy and like?). @samdecker
• Pete Cashmore: Founder of Mashable.  A true celebrity, but still a very nice guy with a Scottish accent.
• Chris Brogan: President, New Marketing Labs. Brogan is recognized as one of the “World’s Top Bloggers” (Advertising Age Power 150 Top 10 Blog) and his book, “Trust Agents” (coauthor is Julien Smith) reached The New York Times Best Seller’s list in 2009. His new book Social Media 101 was recently released.  Chris is also the cofounder of the PodCamp new media conference series. Chris takes time to respond to almost everyone that reaches out to him. @chrisbrogan
• Josh Bernoff: Coauthor of the BusinessWeek best-selling book, “Groundswell: Winning in a World Transformed by Social Technologies,” Bernoff is senior vice president, idea development, at Forrester Research. @jbernoff
• Jay Baer: Greetings. Jay has founded 5 companies, and spent 15 years running digital marketing agencies. He has worked with the biggest of the big brands. Founder of convince and convert. @jaybaer

It's interesting that I've not included any UK based (apart from Pete) social media people - but this list is about the key influencers in the world today.