Deciding on a Domain Name format

What would be the best format?

[Joe_Jordan]

Ok, here's my issue. I have a made up word for my site (software industry). The word can be split up to make two seperate words, for example; 'keyword' can also be broken up into two seperate words 'key word'

Now, the domain I *really* want, keyword.com, is taken, and the current owner doesn't want to sell (although its parked and not using it for anything). I've purchased a number of other domains, and I need to decide which would be best to market.

I currently own:

keyword.net
key-word.com
keywordonline.com
keywordsoftware.com

Which one do you think would be most marketable?

[macz_g]

I think the most marketable domain would be:

www.keyword-keyword.com

That is what i remember the best, however the debate still rages on what works best interms of SEO.

[gamerefs]

keyword.net i would use. any domains with hyphens people don't remember as much plus its bad for marketing. Lets say a friend uses your company and likes it. he tells another friend, most likely the other friend won't remember the hyphen and you lost a customer.

[treeline]

Either keyword.net (short, sweet, easy to remember) or keywordsoftware.com (says what you do, straightforward, gets the .com). I'd avoid the hyphens for "real" companies, real people have trouble with them, leave it for the keyword-search driven crowd who only get business from search engines.

[Rodney]

I would probably use keywordsoftware.com if it didn't end up being too long of a name.

Or just fakename.com and create my own brand.