Sites that are essential to my day

Bryan Person asks: Which 5 sites are most essential to your daily workflow?

For work, the key sites for me are:

• Gmail. Always the first one to be opened on my browser. I start and end every day with a 'mail run' but I don't have it up all the time.
• 30boxes. I usually have the mobile version loaded because the view defaults to today's activities and it's easy enough to add new events to my calendar. I only switch to the web version when I'm moving things around because the drag-and-drop feature is perfect for that.
• Google Search. I typically use the search toolbar in Firefox, and rarely does a day go by without me performing at least one search.
  
• Dictionary.com. I do a lot of writing and editing in my job, so having ready access to an online dictionary is absolutely necessary.
  
• TwitBin. For the times when I just want to clear my head, I keep TwitBin, a Firefox extension for Twitter, open on my browser.

Once I'm done with my work day, my focus shifts to sites that are more in line with my personal hobbies and interests:

• Blogger. My blogging platform of choice, simply because it's easy and I'd much rather leave the management of the whole blogging infrastructure to Google.
• Google Reader. An indispensable tool for keeping up with conversations all over the web. When I'm on the road and stuck somewhere with nothing to do, I can also fire up the browser on my Treo phone and read my feeds using the mobile version.
  

I expect to eventually reclassify Google Reader as a work-related site because I'm starting to find feeds that are directly relevant to my work -- a trend that is quite gratifying to see.