SlideShare users who want to mashup slides with video - now you can do that using Omnisio. They have created a cool tool to do such mashups. You can see an example below. Its very nicely done. They just launched today.

One note to the Omnisio founders: Omnisio should acknowledge where the slides / video are from. For example for this talk by Merlin Mann, I am pretty sure the slides came from SlideShare - that’s where Merlin himself uploaded it to: http://www.slideshare.net/merlinmann/inbox-zero-actionbased-email

The page for the Omnisio video-slide presentation shows the origins of the video (nicely done!). Similarly, it should show the origin of the slideshow as being from SlideShare. I think the player should also show where the original slideshow and video is from. Maybe at the end (I know real estate is precious on the player, but it should be easy enough to show it at the end).

SlideShare users, if you have feedback about video-slide integration by Omnisio, please post it here or at their blog. I am sure the founders will appreciate the feedback.

The Plaxo team just released an update to their site. You can now show off your slideshows from SlideShare on your Plaxo feed, which is a great way to let your friends and colleagues know about new slideshows that you have created.

Here’s a slideshow that shows how to do it.

| View | Upload your own

Extra-geeky footnote: like many other integrations with our site, the Plaxo integration was done using our RSS feeds: no API authentication or complications required! RSS is a surprisingly powerful interface for making mashups like this, since we load up our rss feeds with all kinds of multimedia goodies (specifically thumbnails and embed codes for the slideshows in the feed).

We have just released a Slideshare API wrapper in C#.NET to make it easier for Microsoft .NET developers to build mashups using the Slideshare API. This also contains a sample code to illustrate the usage of the API library.

We are planning to release similar API wrappers for other languages like Ruby, VB.NET, Python etc. A PHP library is already available for download.

You can also use Slideshare’s content-rich RSS feed to make cool applications. Some sample mashups built by the community have been showcased at http://www.slideshare.net/developers and www.slidesharetoys.com.

To see your application listed on these pages, make a really cool app (using the API/RSS) and send us the URL.

To stay up-to-date with the latest on this front, join the Slideshare-Developers Google group!