Produced by Boston-based IDG World Expo, Macworld Conference & Expo is a tradeshow with conference tracks dedicated to the Apple Macintosh platform.
It is held annually in the United States, usually during the second week of January. Originally Macworld Expo, the gathering dates back to 1985.
The conference tracks are taught by leaders in their fields and require large admission fees. They last for a few more days than the Expo, which runs generally three or four days.

The Professional Developers Conference (PDC) is the definitive developer event focused on the technical strategy of the Microsoft developer platform. Attendees come from around the world to learn about the future of Microsoft developer technology directly from the people who make it happen.

There's never been a more exciting time to build mobile applications for the BlackBerry platform. Or a better time to be a part of the BlackBerry Developer Conference. With over 1,000 participants convening from around the world, this is the place you'll want to be!

You don't have to be an expert yourself - you just have to be an enthusiast. So pack your ideas, your know-how and your passion for developing and come build with us in San Francisco, California.

TechCrunch50 is the global competition conference for start-ups. TechCrunch50 is a conference held at the Design Center Concourse in San Francisco, California on September 14-15, 2009, hosted by TechCrunch and Jason Calacanis, CEO of Mahalo.com and Mahalo Answers. Its aim is to find the best Web 3.0 start-ups and launch them in front of the industry's most influential venture capitalists, companies and press. One company will win $50,000 from the TechCrunch50 organizers.

The slogan for the event is "It's only rock and roll, but we like it" which suggests that this will be a music only event and that the heavily rumored Apple tablet will not be making an appearance.

The 2009 US Open will be held from 31 August to 13 September, 2009, at USTA Billie Jean King National Tennis Center at Flushing Meadows, New York City. Former World No. 1 Kim Clijsters is set to have a much anticipated comeback in this year's U.S. Open. Open[1] with a wild card entry after two years of her retirement of professional tennis due injuries.
The Arthur Ashe Kids' Day Saturday, August 29, 2009, this year's lineup is guaranteed to rock the house with some of today's hot young new talent.

Golf is a sport in which players(golfers) using many types of clubs, attempt to hit balls into each hole on a golf course in the lowest possible number of strokes. Golf is one of the few ball games that do not use a standardized playing area; rather the game is played on golf "courses", each one of which has a unique design and typically consists of either 9 or 18 holes. Golf is defined in the Rules of Golf as "playing a ball with a club from the teeing ground into the hole by a stroke or successive strokes in accordance with the Rules".

The Microsoft Worldwide Partner Conference (WPC) provides a forum to learn about the latest Microsoft products, programs, strategies, and cutting-edge technologies. Connect with thousands of decision-making partners and Microsoft experts from across the business (executives, products and technologies, sales and marketing) and prepare to take advantage of new business opportunities, new business development strategies, and innovative solutions.

The 2009 CONCACAF Gold Cup will be the tenth edition of the Gold Cup competition, the association football championship of North America, Central America and the Caribbean (CONCACAF). It will be contested from July 3 to July 26, 2009 in the United States.[1] This competition will be the fourth tournament without guests from other confederations.

The Apple Worldwide Developers Conference, commonly abbreviated WWDC, is a conference held annually in California by Apple Inc.
The conference is primarily used by Apple to showcase its new software and technologies for developers, as well as offering hands-on labs and feedback sessions.
The number of attendees usually varies between 2,000 to 4,200 developers; however, during WWDC 2007, Steve Jobs noted that there were over 5,000 attendees.