Synonyms Use a thesaurus to find terms that are related to a primary keyword. Searching on a synonym will often bring up different Internet search results. A thesaurus groups words that are similar in meaning. Usually, you reach for a thesaurus when you have a word in mind and you are looking for a similar term. Keep in mind that no two words mean exactly same thing. We turn to a thesaurus to find different, more expressive ways of speaking and writing, this is particularly important when related to keywords.

WebReference - http://thesaurus.reference.com/ Merriam-Webster - http://www.m-w.com

Singular and Plurals Using plural form of a word in many of search engines, may result in a different batch of search results, than a search using word's singular form. It is important that websites be optimized for both singular and plural forms of critically important keywords or phrases.

Meta Tags Look at competitor or similar web sites meta tags to determine if you have overlooked any obvious keywords or phrases. This is very easy to do, simply view source of web page and look for a tag in header that says [meta name="keywords" content=].

Exact details of search company's planned service aren't known. But people familiar with matter say it could have similarities with PayPal, which allows consumers to pay for purchases by funding electronic-payment accounts from their credit cards or checking accounts.

Some consumers like PayPal for security it offers, since it allows them to share their banking or credit-card numbers only with PayPal without having to divulge information to merchants.