What are Google' s additional businesses?

The core business of Google expanded a lot over the last few years. Probably the most well known addition to Google are the ‘Google Ads. Google Ad-sense offers a contextual advertising solution to web publishers consisting of text-based Google AdWords ads that are relevant to site content pages. Google introduced the google toolbar, the email service ‘G-mail’, a translation service for web pages, launched a ‘news’ web page and is developing ‘Froogle’ which is a web-shop version of Google.