Tumblr – FREE
The Tumblr app comes with a range of features. As well as being able to write and publish posts, add images, and other basic functions, you can schedule posts for a certain time, create customized tweets to alert followers to new material, and manage more than one Tumblr blog at a time. The content editor allows you to publish text, audio, video, quotes, images and links, so the content you’re posting doesn’t have to be restricted by the fact you’re using an iPad. You can also view and reply to Tumblr messages, and see which of your iPad contacts also uses the blogging platform.
Posterous – Free
Posterous is a blogging platform that allows you to create ‘spaces’ to share posts with family, friends and the general population. Using the Posterous app, you can share text, photos and videos and publish to your spaces from your iPad. You can also keep track of comments and likes, and view other people’s posts directly from the app.