Leave it to Google to keep pushing the boundaries of what can be done online.

Last month, the search engine giant published a press release touting its first-quarter 2010 results—without actually detailing what the results were. Instead, it directed anybody curious to visit Google’s investors relations Website and announced that it intends to make all future announcements about financial performance exclusively through news posted there.

That’s a departure from prevalent practice in Corporate America, which is to publish the full text of earnings information in a press release. It also puts Google in the vanguard of companies taking advantage of guidance ...