Will expanding websites hurt my google rankings?

My Niche is pretty simple consists of having a website and a coupon code, not really using Affiliate links
now i feel ready to start expanding and trying to take over the whole niche
my first step is to buy 5-6 more .come domains and make the same site differently enough that people think their made by different people.
is there do's/dont's for making many same websites providing almost identical information? how could i do that and not hurt my rankings on google?

Once none of your articles are the same you'd have no problems.
If your writing is the same you may get a duplicate content penalty, others will say you just
won't rank for duplicated stuff.

Long story short.. I wouldn't worry about it

thanks Dog-Tag but I'm going to target the same keywords just as long as the 'Topic' i guess will be on different stuff but contain same keywords i should be fine right ?

Sako94 said:

thanks Dog-Tag but I'm going to target the same keywords just as long as the 'Topic' i guess will be on different stuff but contain same keywords i should be fine right ?

Click to expand...

Yes you will

Sako94 said:

thanks Dog-Tag but I'm going to target the same keywords just as long as the 'Topic' i guess will be on different stuff but contain same keywords i should be fine right ?

Click to expand...

Of course.. how would you see a problem arising? Your simply creating new sites, BUT these sites will now be competing with each other.

If you just can't get one of them ranking right, 301 it to one of the other domains to put it on no.1 (hopefully) when you 301 redirect a domain, to another... any credit that site built up with google will be passed onto the "new domain"... just a thought if you find you can't get one site ranking at all, you can still make use of it.