Here are web links that are great resources that can be used at tutorials or manuals for twitter.

Learning to Twitter - Tweeting to Learn
Social Media University - Tutorials
Free Twitter Manual
Shelley Terrell Twitter Resources
Twitter Handbook for Teachers
Twitter Reading List
How to Use Twitter for Social Learning
Sue Davis Twitter Bookmarks
General Twitter Tips
Twitter for Teachers in 15 Minutes
Cybraryman's Twitter Resources
The 7 Step Quick-Start Guide for New Tweeters
Twitter: Best Practices and Tips
The Best Resources for Beginning To Learn What Twitter is All About
50 Terrific Twitter Tutorials for Teachers
A Quick Twitter Guide & Glossary for Business Users
Twitter Vocabulary for Newbies
How To: Send a Voicemail in a Tweet
Adding a Twitter Widget to Your Website
Five Platforms for a Classroom Backchannel Chat
Today's Meet - for BackChanneling
Put Your Twitter Followers on your Twitter Background
Twitter Trend Tool
Analyze your Followers
Got a Sub? Team Teach with Twitter
8 Characters to Make Your Tweets Sparkle
Technology Today - The Twitter Times
Get Your Own - The Twitter Times
Create Online Polls
10 Twitter Safety Tips to Protect Your Account and Identity
Developing Your Personal Learning Network using Twitter
Twitter in the Classroom: 10 Useful Resources
50 Things to Avoid When you Tweet
Teaching with Twitter
Tips for Twitter Trainers
10 Twitter Tips for Teachers
6 Resources for Using Twitter in Education
Twitter4Teachers
Ping - Post from Anywhere to Anywhere
HowTo: Use Twitter Lists
MicroBlogging Tools & Twitter Apps
Links to Help you Get the Most out of Your Twitter Time
Twitter Tips: for Teachers & Educators
Twitter Help for Educators
Twitter OnLine Training Videos
What Parents should know about Twittering
15 Twitter Netiquette Rules You Must Know
30 Newest Ways to Use Twitter in the Classroom