Finding more relevant keywords

Where to find what users are searching for

[silverbytes]

I tried the tool adwords offers to suggest keywords, it's nice. However you must supply the keywords and few of suggestions uses to work for me (and those I enter usually are the most searched ones)

Is there other ways or tools to discover what does users search for related to your product?

[briggidere]

you could try the overture keyword suggestion tool as well and maybe WT..

those seem to be good starting places.

[silverbytes]

yes, for english search terms seems to be.
overture has a spanish service but I don't know if very reliable.