About 8 months ago, I wrote about my switch over to Gmail as my primary work email client. Seems I’m not the only one doing this based on this story in today’s New York Times (which, incidentally, I first read in my car on my Cingular 2125 Windows Mobile phone while I was driving into work this morning and then read again on Google Blogoscoped). The one thing this article misses, in my opinion, is a key reason I made the switch: productivity. Gmail has some massive productivity enhancers that are absent from Outlook and other Windows-based email clients. Conversations, quick and always-works search, effective spam filtering, instant filtering, instant mobile access, and tags are some of the productivity enhancers.