1. Take Another Look Before You Send a Message - Email Etiquette Tip

Don't send anything you don't want to send.

2. Do Not Default to "Reply All" - Email Etiquette Tip

"Reply" is good. "Reply to All" is better. Right?  We should only do that if we plan on everybody getting the e-mail. 

3. Keep Emails Short - Email Etiquette Tip

Do not intimidate recipients with too much text.

5. Write Perfect Subject Lines - Email Etiquette Tip

Do you make these mistakes in your email subjects? (The key to getting your messages read is not to be clever.)  Keep your subject lines simple.

6. Clean Up Emails Before Forwarding Them - Email Etiquette Tip

Forwarding emails is a great way of sharing ideas, but make sure the original idea is not hidden in obfuscation.

8. Don't Forward Hoaxes - Email Etiquette Tip

Email hoaxes often contain stories that are intriguing, and sure to irritate. Here's how to spot and stop urban legends.

9. Use Current Antivirus Software, Keep it Up to Date, Scan for Free

Make sure you're not spreading worms and viruses via email or act as a vehicle for spreading spam. All this can be caused by malicious emails. Fortunately, there's protection.

10. Say Why You Think What You Forward Will Interest the Recipient

More and better communication makes better relationships. Here's a way to spot and share relevant information and foster ties by forwarding emails and links.

11. Do Let People Know Their Mail Has Been Received - Email Etiquette Tip

Did the spam filter eat my message? Spare others this nagging question and let them know you got their email.

12. Ask Before You Send Huge Attachments - Email Etiquette Tip

Don't clog email systems without permission.

13. Talk About One Subject per Email Message Only - Email Etiquette Tip

Help make the world less confusing. Try to talk about one subject per message only. For another subject, start a new email.

14. Punctuation Matters; in Emails Too - Email Etiquette Tip

Comma, colon, hyphen and semicolon — all exist for a reason: they make it easier to understand the intended meaning of a sentence. Don't make life more difficult and possibly less interesting for the recipients of your emails. Pay some — though not too pedantically much — attention to punctuation.

15. Use Acronyms Sparingly - Email Etiquette Tip

DYK? Not everybody knows every acronym, and they don't save that much time anyway.

16. Resize Pictures to Handy Proportions Before Inserting Them in Emails

When your photos look good in your email, you look good, too! Here's how to make sure your images are not larger than screens and mailboxes by resizing them in style — online and for free.

17. Writing in All Caps is Like Shouting - Email Etiquette Tip

Don't shout in your emails (and all caps is so difficult to read).

22. In Doubt, End Emails with "Thanks" - Email Etiquette Tip

If you don't know how to say good-bye at the end of an email, there's one thing that will almost always be appropriate. Thanks.

23. Always end the e-mail with your name.  Depending on how well you know the person you should include the last name.

26. Avoid "Me Too" Messages - Email Etiquette Tip

"Me too" is not enough content, but too much annoyance.

27.  Use Blind Carbon Copy.  Don't send your friends e-mail addresses out to everyone else.