Google seems to look at the age of your domain so...
Anyone who has been marketing on the Internet for a while knows
that without good, targeted traffic generating sales for you,
you are dead in the water. No traffic, no sales, no money.
Let's talk about domain names. Many marketers out there who want
to put something up on the web simply log on to their favorite
domain register and start looking at what domain names might be
available. After registering their catchy domain name, voila,
another site is born on the Internet!
There is a better way to register your new domain: choose a
soon-to-expire domain that's already been around, got abandoned,
has backlinks on the major search engines and "used" to have a
good amount of traffic when it was alive and kicking. For
whatever reason, its owner abandoned the site, went out of
business, checked out or forgot to re-register it.
I like to grab domain names before they expire for the simple
reason that they risk a smaller chance of having their PR zeroed
out by Google after expiration. Sometimes you can get away with
"expired" domains without losing all the links that are still
pointing to them. However, soon-to-expire domains seem to work
best. Ideally, you will want domain names that are Dmoz or Yahoo
listed. These can be as good as gold.
Make sure you do some background checking on the domain you
intend to acquire so you know what the site's original content
was all about. Use http://www.archive.org to research the site's
history. For an expired domain, all you do is re-activate it
under your name and take advantage of previous "bookmarks" and
traffic originating from sites that linked to that domain. Sure
beats a brand new domain with nothing but a wish and HTML
appended to it.
Why start from scratch with a new domain name and optimized site
that might take 6-8 months to get anywhere near the top of the
Search Results? Some SEO experts say that Google's indexing and
ranking algorithms consider the age of your domain as a form of
age-filtering function. So it makes sense to purchase a domain
name that's been past this 6-8 months age filter.
Google seems to like stability and time on the market. So,
choose a domain name accordingly. If you have a domain that's
been around for a long time, it shows Google that your site has
stability and is unlikely to be a temporary, throw away site,
possibly designed for spamming purposes such as mass-generated
doorway pages.
Reference: http://www.rightclickwebs.com/seo/google-aging.php
After you've nabbed a soon-to-expire domain name, add the best
"focused" content and keyword phrases to represent your new
site. Also put the best keywords on your Title tag. Try to stay
away from obscure domain names. Find names that are easy to
remember. Keep the theme of your new site and target audience
the same as what was previously on your new domain.