ReadWriteWeb

Today Twitvid announced that it is launching a new open social video network and redesigned site focused on helping users find their favorite videos. Twitvid wants to make it easier to upload clips and share them to YouTube, Vimeo, Facebook and Twitter.

For now, Twitvid's frontpage interface looks more like Digg's (before the social newsrooms). It shows most popular TwitVids by views, along with a featured Twitvid and a Twitvid Tuesdays Winner. There is a list of popular members on the right rail. Twitvid is tossing this simplistic design for user profiles that focus on personalized video taste. Sharing will be more focused around personal interests rather than top rated content. Imagine the Facebook news feed, but only populated by video that has been personalized to your tastes.

SlideShare, the popular service for sharing presentations, just announced a major update to its platform. Starting today, SlideShare users will be able to upload videos of their presentations, screencasts and other business-related video content. Thanks to SlideShare's LinkedIn app, LinkedIn's users will now also be able to share video on the popular social networking site for professionals.

According to the latest data from Nielsen Online (PDF), overall online video usage in April declined slightly compared to March (-2.3%), and all the major players, except for Youtube (+0.2%) and Hulu (+7.1%) saw the number of video streams on their sites decline. The real winner here, though, is MTV, which streamed 15.7% more videos in April than in March, and which has grown 359.6% year-over-year.

Interestingly, Disney-owned ABC.com, which just struck a deal to syndicate its videos on Hulu, saw the largest decline in streams since March, with a 15.9% drop in total streams.

Goodmail Systems, specialists in email delivery campaigns that are certified via a cryptographic signature, today announced the launch of their embedded video platform. This new feature will allow customers to use the same trusted Goodmail service to send emails with a multimedia edge.

YouTube today introduced a new feature that allows publishers to invite others to annotate their videos. Just a few weeks ago, YouTube introduced a new annotation feature that made it easier for publishers to add speech bubbles or spotlights to their videos. Now, you can send a special link to your friends so that they can easily add their own witty comments to your videos.

If you imagine a mashup of a micro-blogging site with a very pretty photo and video sharing service, with good privacy controls and an innovative user interface thrown in for good measure, you might come up with something akin to thisMoment. ThisMoment, which is still in private beta, is one of the prettier sites we have reviewed in the recent past. The idea behind thisMoment is that you can upload photos and videos from special moments in your life to the site, which then displays them in a beautiful user interface. The site, however, is flexible enough to also make it a very capable all-purpose photo and video micro-blogging service.