I've been playing around with Google Maps Street View and I just love it. If you haven't tried it yet, test drive it using this Manhattan map. Amazon A9 had something similar a few years back, but the Google Maps implementation is much nicer with a clean, intuitive user interface and snappy performance. With the recent additions of personalized maps, traffic, and now street-side images, Google Maps just keeps getting better and better!
I wish I could say the same for the Google online applications like spreadsheet and word processing. Lately, sites like Zoho are doing a much better job. Check out how spreadsheets look in Zoho - very impressive!