Printing from an iOS device? Easy if you have an AirPrint compatible printer. See lists of H-P, Canon, Epson, Brother and Lexmark
at this Apple Support site:
http://support.apple.com/kb/ht4356

IOS-Productivity Pre/Post Test
http://bit.ly/iOS-Productivity

Help on Keynote
http://help.apple.com/keynote/ipad/1.5/

How to Play PowerPoint Presentations on iPad
http://www.dvd-ppt-slideshow.com/blog/how-to-play-powerpoint-presentations-on-ipad/

Adding video to Keynote
http://www.iskysoft.com/apple-ipad/add-video-on-mac-to-ipad-keynote.html

Help on Pages
http://help.apple.com/pages/ipad/1.5/

Help on Numbers
http://help.apple.com/numbers/ipad/1.5/

Setting up iCloud on a Windows Computer
http://www.infogenra.com/how-to-setup-icloud-on-windows-computer.html

User Manual for Good Reader
http://www.goodiware.com/gr-man-general.html

Review of Penultimate on TUAW:
http://www.tuaw.com/2010/04/19/tuaw-review-write-and-organize-handwritten-notes-on-your-ipad-w/

How to get a guide for iOS iWork in the iPad's iBook Library:
https://discussions.apple.com/thread/2782932?start=0&tstart=0