Want to monetize your site with the help of Google? Apply for an AdSense account. Just keep in mind that not everybody gets an AdSense account. Read the terms and policies carefully before applying and also while using it.
Use Google Groups to created your own group for collaboration, discussion and communication. You can use Google Groups as a forum if you want to save money used in hosting a forum site attached to your blog.
Google Blog Search
Use Google Blog Search to find quality posts from blogs online.
Use Google Apps for business or personal use.
Use Google Transliteration to write a blog post in Russian or Arabic and many other languages including Hindi.