I'm sure, there 2 types of people:

1. one who like sense of control, and feel everything in control
2. one who like work other people, who can trust, outsource, manage tasks done by other people.

Most of you doing keyword research yourself?
I'm mean advanced keyword research that takes more than 60k keywords list.

or prefer to outsource like thing of this task, that done by other people - so that allow them focus on more important things? and what happen If keyword research not done like you expect "perfect", you take your sense of control back and do it yourself?

i use these tools to search keyword and these all are very nice tools:

Overture
Wordtracker
Keyword Discovery
Google Adwords

I use only Google Adwords for my keyword research.

Keyword research is the core of any SEO campaign, since the keywords you pick during the research will be included in your website copy, into your PPC campaigns and any other website promotion campaigns. In a sense, keyword research is similar to customer research, because you are studying what words your potential clients use when searching for your service or product.

Here is what you need to do to run a solid keyword research:

pick valid initial keywords
use a variety of sources
search from the point of view of your potential customers
get the most possible amount of keyphrases
keep the keywords that will attract the target audience
pick the small-medium competitive keyword phrases
spot the topics for your content (site pages, articles, blog posts, press releases, etc)
use keyword research data
write website content

Keyword Research is at the heart of any SEO campaign, as the keywords selected for research are included in the web copy in your PPC campaigns and other promotional campaigns site. In a sense, keyword research is similar to finding customers, because you learn what words your potential customers use in the search for your service or product.

i just use Google Adwords (keywords tool) for keywords research.

It is better to do such little things yourself. Because keywords research is the base of your seo campaign. And if there remain any flaw, then it is very bad. So, do it yourself with good skills.

Nice Info...Thanx for sharing

hi, these are good two points you discuss, i use a tool to research keywords..
http://keyword-finder.net/
i hope proves helpful for you

hi
not spamming is the key.by doing this keyword can rank high. most easy way to manage the keyword.