I see the same thing happening with Google. It adds more features making Google an even more compelling service to use, but the service is starting to deteriorate. The signs I see are these:
1. Requests to close mail accounts I am not using
2. Congestion or service down on weekends
3. Service down for Google Chat function
This is a problem for Google shareholders because if the market is pricing the Google stock at a premium because they have a history of surprising the market on the upside. When they show a performance below expectations, I think you can expect them to collapse in value. It will be interesting to see if they can re-invent themselves.
Actually I think the greater threat to Google is on the revenue side. I think people are starting to loose interest in the adverts its clients place on their sites. I've noticed that I don't get as many clicks as before despite my web traffic growing.
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Andrew Sheldon www.sheldonthinks.com