Don’t send raw links over email, send previews that suggest what a link is all about.
You can write an email in Gmail now and schedule it to be sent automatically at the perfect time.
Learn and master the various keyboard shortcuts available in Gmail.
Unified desktop notifications for Gmail and all your social networks.
Send the current web page by Gmail with a click. Works for both Gmail and Google Apps accounts.
TrueSwitch copies your mails and thus makes is easy for you to change your email accounts.