6 different sites or one authority.. any risk?

I've currently got 6 sites, lets same all in the same type of niche but different topics e.g;

black
blue
red
green
white
purple

They are all ranked on the first page for their respected keywords i was wondering would it be a safer and better option to make a site like;

colors.com and 301 redirect my old sites to internal pages of my 'authority site' aka

colors.com/black
colors.com/blue
etc.

Which would be better? sticking with those 6 sites or all 301 redirecting them to an authority site.. i don't want to get banned from Adsense for 'made for adsense' sites and i thought this would be a good idea.

If for example 'blue' was rank 1 and i redirected it to colors.com/blue would the authority site be the new number 1 rank?

Cheers!

Jerry158 said:

Which would be better? sticking with those 6 sites or all 301 redirecting them to an authority site.. i don't want to get banned from Adsense for 'made for adsense' sites and i thought this would be a good idea.

Click to expand...

You could do either. Depends on what your goals are.

Having one site is easier to maintain, but having six sites spreads your risk.

In either scenario, the key thing is make sure that there's no common footprint between the sites. You could do this by using different domain registrars, different hosting/IP address, private nameservers, different site design, etc. and no interlinking.

Jerry158 said:

If for example 'blue' was rank 1 and i redirected it to colors.com/blue would the authority site be the new number 1 rank?

Click to expand...

Yes, virtually all of the ranking power of the 'blue' domain would be passed on to the sub-domain.