ImageSpan, a Sausalito-based start-up which provides rights management and payment systems for online video publishers, has received angel funding from top angel investors Alan Patricof and his new venture fund, Greycroft Partners, along with Ron Conway’s Angel Investors. VentureBeat reported this today, adding that the amount of the angel round was not disclosed.For publishers large and small, the need for proper rights management and payment will be of increasing importance as real revenue starts to enter the equation. In addition to providing rights management, ImageSpan has launched a network of 7,000 videographers who are creating web video for companies and advertisers. You can see the interface for the video production platform right here. Sounds similar in ways to TurnHere, the Emeryville company that just landed $7.5 million in venture funding.Last month in New York, I caught up with Iain Scholnick, CEO of ImageScan at the AlwaysOn media conference.-- Andy PlesserPosted on Beet.TV on Tuesday, February 19, 2008http://www.beet.tv/2008/02/online-video-ri.html Less