Hmmm… It’s really tough. On the one hand, one cannot run a business nowadays without taking Google into account. On the other hand, one can’t build a business that depends on Google.
A number of Google services just announced that they are about to shut down. The Google Video team announced that it will shut down uploads in a few months, while the Google Notebook team announced that it is stopping development the service will continue to function, however. According to Danny Sullivan, Google is also closing Jaiku, a Twitter-like micro-blogging service that was bought by Google before it even launched, but which has lingered in invite-only mode ever since. Google Catalog search, which made shopping catalogs searchable, will also be closed soon.
Update: Google will release the Jaiku code under the open source Apache license, so that other organizations can pick up where the Google team left off. It is not clear if current users will be able to transfer their accounts.