Search engine monopolies and antitrust

From  http://online.wsj.com/article/SB10001424052702303339904576403603764717680.html

Google is almost a  monopoly in many countries for  internet search with a market share of over 80%.

If a website buys or sells links which are also a form of advertising (instead of spending their entire advertising budget on Google Adwords), the website is banned or demoted from the search engine rankings.

Local search engines

In some large  countries, the biggest  search engine is a local search engine

For example in
China – Baidu
Russia – Yandex
are the major search engines. They understand the local requirements better and can generate relevant results accordingly

Analyzing search

Analyzing search, search results