Users are reacting to Google's new online spreadsheet with a big yawn. Is the company searching for a strategy?... Can there be too much of a good thing? Some Google watchers are beginning to think so. Leading technology bloggers' reactions to Google Spreadsheets, which allows users to build and share simple Excel-like spreadsheets on line, have ranged from lukewarm to hostile. Critics are assailing Google's latest offering for having several technical weaknesses. And, more significantly, they're beginning to question whether Google's long-term strategy in the arena of Web-based software applications is good for the company, for users, and for the...