Twitter is number 1 in sharing and had thousounds of tools and applications .
revisit is a real–time visualization of twitter messages (tweets) around a specific topic. You can create your own twitter wall at a conference or an ambient display at your company or whatever use you come up with. In contrast to other twitter stream tools, it provides a sense of the temporal dynamics in the twitter stream, and emphasizes the conversational threads established by retweets and @replies.
Screenr lets you record screencasts of up to 5 minutes in length and stands out because of how easy it is to use. Just enter your Twitter credentials and press 'record.' Screenr runs inside your browser, so you don't need to install any software. Once you finish your recording, you can immediately send your video directly to your Twitter followers from within the application.
Bubble Tweet This service enables anyone using the Twitter® social media service to record or upload short video messages that speak directly to their followers. It plays these video messages on a page that includes Twitter member's profile information and is a great way to to leverage video social media guerrilla maketing efforts.
BubbleJoy.com - This service enables anyone with a webcam to create quick and fun interactive video greeting cards for their family, friends, and now includes a direct tie-in for Twitter members as well.
VidTweeter.com - This service is tied directly to Twitter and enables members to share video material hosted on different services directly with their Twitter followers without directing them away from their main Twitter profile information. It's yet another great way for people to leverage video material in their Twitter social media marketing efforts.
Seesmic Web makes it easy to access your Twitter account from any browser and at any time. The new interface of Seesmic Web now brings to the forefront: Updated Followers and Following List in Contacts. Adjustable Column Size, Sounds, Mute / Un-mute Users, Location Trends, Inline Pictures and Video Previews. You can take a look at the changes by going to: http://seesmic.com/app/
Read We've acquired Ping.fm. Get ready to update 50 social networks from Seesmic
Your friends are not all in one social network, but we want to help you stay in touch with them anytime and from any device. That is Seesmic's vision and to deliver this faster, we have acquired Ping.fm. You can now update 50 social networks using Seesmic+Ping.fm from email, chat, sms, Blackberry, Android, web, Windows, OSX and much more soon.
Custom Background for TwitterThe best for sharing using social media is TweetDeeck.You can download free here .
More than 50 free Twitter backgrounds provided.