link- http://picasa.google.com

Photobucket is the premier site on the Internet for uploading, sharing, linking and finding photos, videos and graphics. Your free Photobucket account can store thousands of photos and hours of video.
Sharing of photos, videos, and albums by email, and mobile Friends and family don't need an account on Photobucket to see your stuff. They just need to click the link you give them. So stop emailing photo attachments around, and start sharing with Photobucket.
link -- http://photobucket.com/
Jaiku's goal is to bring people closer together by enabling them to have conversations. It offers a way to connect with the people you care about by sharing updates with them on the Web, IM, and SMS - as well as through third-party applications built by other developers using the Jaiku API.
Jaiku is a part of Google. The service is maintained by volunteer Google engineers on their spare time.
It's easy. First, sign up. It takes 10 seconds. Then, just post new plurks which tell us what you're doing, or how you feel, or what you're thinking or anything else for that matter and it'll appear on your timeline. You can tell us on the site, through instant messaging (stuff like MSN or AIM) or by text messaging us an update. Be sure to invite all your friends and see what they are up to throughout the day, it will make Plurk that much more fun for you.
Jack Dorsey had grown interested in the simple idea of being able to know what his friends were doing. Specifically, Jack wondered if there might be an opportunity to build something compelling around this simple status concept. When he brought the idea up to his colleagues, it was decided that a prototype should be built.
Twitter was funded initially by Obvious, a creative environment in San Francisco, CA. The first prototype was built in two weeks in March 2006 and launched publicly in August of 2006. The service grew popular very quickly and it soon made sense for Twitter to move outside of Obvious. In May 2007, Twitter Incorporated was founded
link --https://twitter.com/