Numberway - Find Phone Numbers Worldwide the easy way: search free telephone directories, white pages, yellow pages and phone books for USA, UK, France, Australia, India and many other countries
eTBLAST is a unique search engine for searching biomedical literature. it lets you input an entire paragraph and returns MEDLINE abstracts that are similar to it.
You can use words or symbols called search operators to filter your Gmail search results. You can also combine operators to filter your results even more.
How to use a search operator Go to