www.yfrog.com

         yfrog lets you share photos and videos on Twitter, view all your conversations, and connect with your family and friends.

Features:

• It's easy to use. yfrog makes sharing photos and videos extremely simple.
• Sharing is even easier than ever. You can tweet and share your photos and videos right from anywhere on yfrog. Your friends can also share or comment on your photos and videos right from their home timeline or the landing pages.
• Threaded conversations are now a reality! See all your friends' comments, shares and likes in one place on yfrog!
• yfrog is served from ImageShack's back-end for high performance and reliability. This means your conversations, photos and videos are available very quickly, and your files are never lost.

Link: http://www.yfrog.com/

www.gowalla.com

        Gowalla will keep up with your friends, share the places you go, and discover the extraordinary in the world around you.

At Gowalla,

  - Your Passport is a collection of stamps—both everyday and extraordinary—from the places you’ve been. Check in with Gowalla on your phone to stamp your Passport at each place you visit. It’s pretty much like stamping your passport in real life. Only without the jetlag and customs forms.

  - Gowalla makes it easy to keep up with your friends and family. Connect with your favorite people from Facebook and Twitter then enjoy the places they go and the photos they share—both online and from your phone. You can also invite friends to join in your journey from your address book. It’s super simple to set up.

  - Enjoy trips created by National Geographic, USA TODAY, CNNMoney and others that guide you to restaurants, through parks and gardens, or on historic walking tours. Of course, you can create and share your own trips with your friends as well.

  - Gowalla does more than check in. You can take photos, comment on places friends go, and share highlights from your life. You may also find virtual items left around the world like digital souvenirs. Many items are redeemable for real-world rewards such as apparel, movie tickets, gadgets and more. Gowalla make discovering the world around you both fun and memorable.

  -  Gowalla is most fun when you take it with you. Grab our app for your favorite smartphone so you can keep up on the go! Gowalla is currently available for iPhone, Android, Blackberry and Palm webOS phones.

 Link: http://www.gowalla.com/

www.cbox.ws

         Get a Cbox and add a new dimension of interaction to your website or blog. Cbox is a unique chat and messaging application that brings the best features of traditional chat and tagging systems to the social web. And the best part – Cbox Basic is completely free. 

Some of its unique features are,
         Unlike traditional chat, Cbox has perpetual message history so your visitors are placed immediately in context. Cbox is finely customizable to blend into your site, it's intuitive, making it fun and easy to use, and it's secure, giving you control over who can post, and blocking spam.   

Link: http://www.cbox.ws/

www.friends18.com

       Friends18.com is the Most Popular provider of the hottest Orkut, MySpace, Facebook, Friendster, Hi5 comment and scrap codes. It will provide you html codes with the best Orkut scraps, comment graphics, cool & funny pictures, glitters, comment images and a lot more Orkut stuff! Friends18.com is completely user friendly site, very easy to browse and fast loading.

Link: http://www.friends18.com/

www.disqus.com

        DISQUS is a comments platform that helps you build an active community from your website's audience. It has awesome features, powerful tools, and it's easy to install.

Link: http://www.disqus.com/