Picking a product to buy (research): "I want to know about 7200 rpm SATA hard drives"
Done with research, want to buy now: "I want to buy a 7200 rpm SATA hard drive"
Singular natural searches convert better for me, as do singular AdWords keywords.
Jim
I did a study of this about a year ago. I’ll give you an example. Type in “family tree template” in google, then see what domain comes up in the first spot and compare it to what domain comes up when you type in “family tree templates”. Notice it is the same website with “template” in the domain name.
I do however believe it is important to make sure that you use the singular and plural of the work in the text on the page multiple times. Not to mention with “ed”, “er”, and “ing” if needed. The main thing to remember is that there are always exceptions to most rules and this one is no different.