If you are looking for a way to read lots of blogs and web sites from your iPad or iPhone, Google Currents could help. It is an RSS reader that saves content for off-line reading.
This app allows for web conferencing and collaboration from your iPad. With an Internet connection, you can now share screens via the iPad much like on a computer.
iNaturalist is a web site, and an app, for sharing pictures and observations of plants and animals. Thanks to Richard Byrne at Free Tech for Teachers for posting!
Not only does BaiBoard allow students to collaborate on a shared whiteboard via their iPads, but they can also jointly annotate PDFs. Much like with AirSketch, BaiBoard also includes the ability to do a web share. This means that when on the same network, and with the unique URL associated with the iPad, ANY device can see a student working on their BaiBoard through a browser.
3DTOAD.com is a library of 3D images that you can rotate and explore. It includes skulls, skeletons, dissections, coral, geology, and even music. These could be great visuals on an Interactive White Board or used on an iPad.
Present.me takes slide presentations from a variety of formats and then converts them so that you can record audio and then share via the cloud. It does work on mobile devices.
Through this Java Applet, it is now possible to share your screen with any computer or device. It could be incredibly useful for demonstrating a technique in a 1:1 setting.
Unlike other social bookmarking sites, Pearltrees gives you a visual way to see and share your bookmarks. It also helps to consolidate bookmarks between devices.