Choosing keywords is a process that can dramatically affect the performance of your search engine marketing efforts and hence it is one that requires due attention.
Choosing keywords is a easy task for some people, but not so easy for others.
It is not a guessing game but it requires thorough research.
Proper use of choosing keywords is the backbone of the AdWords methodology and to do this properly you will first need to concentrate on what you product is and what it does.
Subject Subject vs Keyword Searching - Subject Searching for most databases (like catalogs and indexes) have subject headings assigned for each book or article included in the database.
Materials can be searched by title, author, and subject.
A subject keyword search is very similar to a title words search in the way that your entry is searched, subject heading field, author field, title field).
Remember that the subject headings are controlled.
Type If a Ranked Keyword search retrieves too many catalog records (a common problem with Ranked Keyword searching), try using a combination Ranked Keyword and Subject Heading search by following these steps: within the Ranked Keyword search box, type in words and/or phrases in any order.
What types of keywords might be appropriate for the item you're seeking.
Type your query in the address box at the top of the screen.
Type title: followed by your search keywords.
Type your term in upper or lower case in the appropriate entry box (search field).
Type in only the part of the title of which you are certain.
Choosing keywords is both an art and a science: Language is an imperfect thing, and even the most articulate and experienced Internet user among us may have trouble trying to express the information they are looking for in terms of adequate keywords.
Choosing keywords is one of the most vital decisions you can make.