For the GreaseMonkey users, developer Mihai Parparita has released two Gmail hacks: Gmail Macros "adds additional keyboard shortcuts to Gmail."
And Gmail Labels which allows color coding of Gmail.

Hat tip to Download Squad

Switch to Gmail guide by Google

A curious use of Gmail, but may violate the TOS, so be careful if you use it this way, but here comes Gspace v0.1. This reminds me somewhat of gDisk for the Mac discussed earlier here.

(thanks Lifehacker)

Lifehacker posted a short tutorial for how to setup a tagging engine of sorts using labels and gmail sent to/from yourself.

Requires the GmailThis! bookmarklet

(Optional) see Gmail tweaked GmailThis! bookmarklet

Extreme Tech has an article talking about various different Gmail uses like rerouting and tagging Gmail by adding a + after your address, using Gmail as a to-do list, using Gmail as an RSS reader and more. It's one of the best Gmail articles I've seen in awhile.

For awhile there I wasn't using Gmail that much nor blogging about it (obvious from viewing the archives, I suppose) but since I've decided not to renew my .mac account this week and use Gmail in its place on the Mac, I am back in the groove again. This also means that there were probably be an increased focus on Mac-related Gmail information at this blog, but I still use Gmail occasionally on the PC side too.

I updated the blogroll and dropped most the links there because the blogs hadn't been updated in many months. If any of those bloggers happen to start updating their information again then please drop me a line so I can add you back.

Other blogs I contribute to
For all Mac blog coverage, you can read my Mac blog. That is updated a couple times a month on average, so it's a low volume read. PHP users can read my PHP-scripts Blog which is updated roughly five times a week. The most frequently updated blog I've written for since July 4, 2003 is Things That ... Make You Go Hmm which covers news, reviews, opinions and muse on a wide variety of topics, primarily web/tech-related, but sometimes other topics. This is a high volume, high content value read, but can be subscribed to by keywords, so it is possible to subscribe any time I write about Gmail only over there: MakeYouGoHmm "Gmail" keyword RSS Feed link

This could be handy for Mac users who want to use their Gmail as online storage space.

gDisk:

software that turns your GMail account into a portable hard drive so you can always have your important files accessible accross the Internet.

The Gmail This bookmarklet will open a small window (doesn't work right in Internet Explorer, but is good in Firefox and Opera) with quick access to Gmail.

Via PC Magazine, instructions for how to use Gmail as POP3 account:

In Gmail, click Settings and then click the "Forwarding and POP" link at the top of the page.

While on a routine cleaning mission this morning I noticed a bunch of spam in my Gmail account for this blog. I get a copy of every comment emailed to a special address and I noticed most of the comment spam was from one account.

Does Blogger have a report user for spam function? I didn't do any poking around, so maybe it's obvious. I spent a good five minutes removing 15 or so identical messages pasted across entries from the last 1 1/2 years at this blog.

I've now turned on the CAPTCHA image which sucks for accessibility, but should keep the garbage mentioned above to a minimum.

There's been a few good things added to Gmail lately like the auto save on messages and more functions. Most blog software could use that functionality.