Gmail, its web-based e-mail product, has become a development focus for the Silicon Valley company, with a stream of innovations leading to its promotion by influential early adopters.
With links to Google Docs, Calendar and other web-based services, Google appears to be making Gmail the centre of an online productivity suite that could eventually challenge the dominance of Microsoft's Office collection of programs.
Google has two motives for pushing harder into e-mail. First, Google makes money from advertising placed inside e-mails. But the service is also valuable for its “stickiness” in increasing users' dependency and time spent on other Google products.
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