Last fortnight, Google reduced the Page Rank of Stanford Daily from 9 to 7 because that website was selling text link ads. It was later confirmed by Google that PageRank scores were being lowered for some sites that sell links.

Well, that may have picked up steam as Google PageRank values of several prominent sites have taken a hit during this week. Some examples:

Washingtonpost.com - from 7 to 5

Millions of people use search engines everyday. Today, the world is a global market place; working around the clock and across time-zones. It is therefore critical to have potential clients find you. The question is how to stand out and ensure that your offering is seen by consumers who are precisely looking for it?

Google’s advertising programme is called “AdWords”. It is used by thousands of businesses of all sizes in India and worldwide, to reach new customers in the most cost-effective and targeted way.

Another search engine is brought into the internet. This time it's different. This is a unique video search engine, ScienceHack which indexes all the videos related to science. Currently, it indexes the fields of science related to Physics, Chemistry, Space. They are currently working to include Geology, Psychology, Robotics and Computer videos and may be coming soon.

A team of scientists screens the video and approves to be included in their index based on accuracy and quality. Their site is designed using PHP and MySql. This search engine doesn't host videos, they just index the videos from popular video sites like YouTube and MetaCafe. You can also help them by submitting videos to their database.