Communication tools

1. Email tools

1.1. Away find

1.2. Scr.im

2. Newsletter tools

2.1. GetResponse

2.2. MailMachinePro

3. SMS/text tools

3.1. Clickatell

3.2. StopNText

4. Instant messaging tools

4.1. Meebo

4.2. GroovyNotes

5. Live chat tools

5.1. Chatango

5.2. Chatzy

6. Voice groups

6.1. Talkshoe

6.2. Voxopop

7. Discussion forum tools

7.1. Phorum

7.2. Tal.ki

8. Audience response/Backchannel tools

8.1. PollEverywhere

8.2. TodaysMeet