A lot of my visitors already have a google gmail account or are asking me for an invitation. I thought it would be nice to share a great site that features lots of gmail tips with you. The site gmail tips the complete collection gives a rough introduction to the google mail service and lists more than 40 tips afterwards. For example tip 27 explains to you how you would add a hotmail email to gmail, tip 11 tells you how to connect securely to gmail.
Every tip is worth a quick glance at least, you learn a lot about the gmail service that you did not knew before. Great tip on advanced search features, contacts and attachements.

Gmail Enables Mail And Contact Import For All Gmail Accounts
Gmail: 90 Tools And Tips To Make You A Gmail Pro
Google Mail Account Security Tips
Inline Google Search in Gmail
Sync Gmail Contacts with Thunderbird
Gmail Adds Email Import
Gmail Automatic Newsletter Unsubscribing
you should leave a emty sign next to spam so that if people don’t want to look at there spam they can delete it all at once :)