It is now possible to completely remove chat from your Gmail mailbox. The disable option is available for Google Apps as well.
Gmail is a free ad-supported web email service from Google that offers upto 7 GB of free online storage. Individual file attachments in Gmail can be as large as 25 MB in size and you can always buy additional storage from Google.
Meet HTML Mail, an online WYSIWYG editor for composing email messages in pure HTML that you can then send using your Google Docs and Gmail account.
Like read receipts in Microsoft Outlook, Gmail has enabled email tracking in Google Apps Business to help users know the exact date and time where their email was opened and read by the recipient(s).
Is your Gmail Inbox almost full? Learn how you can easily find and remove email messages in Gmail that have really large file attachments.
SMS Backup is a free mobile app that can automatically copy all your SMS text messages from the phone to your Gmail account with a click.
Like traditional pop-up windows, these new pop-up ads in Gmail cover a major portion of the Inbox and won't disappear until you close them manually.
Google multiple sign-in feature lets you switch between different Gmail and Google accounts in the same browser without having to go through the sign-in / sign-out cycle. Here are some related tips on using multiple sign-in.
How to let others know that you are suffering from email overload so that they do not expect an immediate response to their email message.
Learn how to add rich HTML signatures from LinkedIn to your outgoing Gmail email messages.
Every time you send, reply or forward an email message to someone through Gmail, it automatically saves the email address of that person to your contacts list.
I am not sure how old this is but Google is now testing image ads inside Gmail.
Sidebar Gadgets let you do more with Gmail that just read email. Learn how to find and install gadgets in Gmail
You can easily add more features to Gmail with these excellent web apps - they also work with Google Apps for Gmail accounts.
Learn how you can send and receive SMS text messages to anyone in your address book right from the Gmail website.
iClippy is a free screen capture tool that lets you capture screenshots and paste them into Gmail, Google Docs and other online web applications without having to save that screenshot image locally.
It turns out that Google Apps now requires you to enable a catch-all address else the messages addressed to an alias are discarded.
This tip describes how you can clean up and sort your Gmail Inbox automatically by moving all low-priority email messages out of the Inbox.
Learn how you can setup multiple email addresses (or aliases) with one Gmail account in Google Apps. Email sent to the alias are delivered to your main inbox.