There are resources across the Web that allow you to use multimedia content for free with some simple attribution. It's a great way to add interesting flavor to your blog without worry of copyright issues.
This article from cnet news offers some great sources:
http://tinyurl.com/yfauqrb
Good video tutorials here that offer some inspiration:
http://max.adobe.com/online/session/112
Augmented ID is a TAT concept that visualizes the digital identities of people you meet in real life. With a mobile device and face recognition software from Polar Rose, Augmented ID enables you to discover selected information about people around you.
All users control their own augmented appearance, by selecting the content and social network links they want show to others. Modifying your augmented ID is easier than fixing your hair in real life and, of course, TAT Cascades will make sure you look great!
According to a blog post from Ross Dawson, augmented reality and ID tagging might be the killer apps for video glasses. He may be on to something here.

Touchscreens. They make a lot of sense on cellphones and handheld devices. They make sense for artists looking for a precise way to draw on a screen without a mouse.