Using Twitter as part of your business and need it to be accessible?  The folks at Accessible Twitter have created an accessible client.  Features include:

E-Learning Learning has a great list of the 125 Top E-Learning articles from 2009 at
http://www.elearninglearning.com/wpblog/top-elearning-posts-2009/
 

The Connected Learner  has an interesting post on how long you should make an e-learning course.   Among the factors to consider are:

• Audience
• Management Desire
• Does the course have to be taken at one time or can it be spaced
• How much time does the audience have?
• Does the course consist of Content, Practice, or Testing
• What extras does the course have
• Is it a single course or multiple courses

You can read the entire post at The Connected Learner: Self-Paced Elearning: How long is just right?

Nikon Learn & Explore is an iPhone app that teaches the fundamentals of photography and offers shooting techniques for common situations.   The app also offers a library of professional images you can browse, each with an accompanying Nikon World article that details shot composition, equipment, lighting, and all that.