Below is a list of the top five ways people are using twitter to 'Twitangelize' (evangelize on Twitter). Each post is written with less then 140 characters.
1.Comfort and encourage. Twunkies (Twitter junkies) post personal life struggles on their accounts. Reply with godly advice and wisdom.
2. Inspire. Send out links to inspirational stories highlighting the amazing things God is doing.
3. Share Your Testimony. As you post your daily activities be sure to include your, hopefully, godly reactions to life's struggles.
4. Pray. Offer to pray for a need.
5. Look for opportunities. Use tools such as PeopleBrowsr or TweetDeck to search words such as "atheist" and then jump into the dialogue.