Google Docs

After exploring Google Docs, I know understand that Google rules the universe. Holy COW! Basically,the foundation of our personal learning networks is completely Google-based, from the Wikis, to the Blogs, to features like Google earth and Docs. It's amazing the evolution of the Google corporation (I lived near their headquarters in Cali when they were just blowing up). They are a (good) monster! Have other search engines adapted this same business model and expanded themselves into so many aspects of the cyberworld? Yahoo? Ask? Just curious...