Which domain do you prefer?

Using dashes in domain names...

[Skeleton]

Which is the best for promoting, seo, bla bla.... purposes. you understood me ;)

www.bluewidgetsreviews.com
www.blue-widgets-reviews.com
www.bluewidgets-reviews.com

And does it matters using .net instead of .com?

Skeleton

[fischermx]

Supposedly a domain name using dash is more readable by search engines.
The real thing is that Google, Yahoo and MSN can split a domain name and take in account each word it contains.

Now, since everybody forget to type the dashes, guess who win?

[Webwork]

A large chunk of this falls into the "which is better: chocolate or vanilla" realm. People will be disposed to type in the URL without the hyphen "if they forget". Saying "word hyphen word" on the phone is problematic.

The consistent advice is get both versions of you can, get the unhyphenated if you can and if you just love the 2 keywords with the hyphen then knock yourself out.

I hold a few hyphenated domains that cost me a few $$$$ each, that if they were unhyphenated would likely have cost me $$,$$$ or $$$,$$$. Very nice 2 word domains. Sometimes a little hyphen isn't all that bad if you don't intend to pick up the phone that much. It all depends.

[otc_cmnn]

It does matter .net vs .com

The SE's prefer .com's (some will argue but just look at the top 10 for any given query)

Also if you promote a .net many(most?) will type in the .com first

[jomaxx]

If you own both versions, then probably the hyphenated version would be better for SEO.

But if you don't, then I would hesitate before branding a hyphenated domain name. That UNhyphenated version is going to get a lot of your traffic, and the bigger you get, the bigger a headache the situation will become.

[arran]

It does matter .net vs .com

I don't think this is the case.

The SE's prefer .com's (some will argue but just look at the top 10 for any given query)

The ratio of .nets to .coms in the top 10 is probably because less .nets are registered. Also, most companies who own both the .com and .net set up a redirect to the .com.