(Object Name changed below to keep things simple)Let's say my company sells badges and buttons.  Our main website is badges-and-buttons.co.uk.We also have a lot of other sites that we have registered that have variations on the name:badges-uk.co.ukbadge-button.co.uknamebadge.co.ukukbuttons.co.uketc.I have been told that just redirecting these sites to our main page could have a detrimental affect on our Google Search ranking as Google will see duplicate content. So should I redirect them, or have a single landing page with a link to the main site, or just keep a blank page.
Should I put a landing page on my secondary websites or redirect to my main page
seo;redirects;duplicate content;google ranking
Redirecting won't have a detrimental affect, hosting the same content under multiple domains MAY have a detrimental affect as it will be seen as duplicate content.The best thing to do is to run a 301 redirect from the additional domains to your primary domain badges-and-buttons.co.uk.You should be able to find examples on how this can be done for the programming language you are using.Edit:I say MAY as according to Matt Cutts at Google, duplicate content tends only to be harmful if that content is spammy. Personally I wouldn't risk it.