I'm surprised no Microsoft alternatives are mentioned here -- Skydrive, Outlook.com, and Office 365 are very solid. I have very specific use cases for Google that prevent me from switching (long story) but if I could I would use the MSFT products in a heart beat.
Also, Yahoo Mail + Calendar + Flickr + Tumblr are pretty solid now-a-days, with lots of positive upside with the new company direction; however I'm iffy on their chat client.