How do I best leverage second EMD domain with same keyword as an important page on my other site?

[bizzer]

(Fictional domain names and keywords follow)

Let's say I have an Adense site called Diets.com  And on that site I've got 10 pages for the ten most popular diets, and each of those pages is optimized for the diet name.  Let's imagine one of these pages is called, "The low-carb diet."

Then I went out and purchased the domain name LowCarbDiet.com.

How do I best use this new domain name?

My options seem to be:

1. Build an adsense site on LowCarbDiet.com.

But isn't it a problem when the the same owner of LowCardDiet.com and Diets.com are trying to rank for the same keyword? The new site would be trying to rank for "low carb diet" and so would the appropriate page on Diets.com. I think Google doesn't like this. True?

2. Make a one-page introductory informational site with no ads on the new LowCarbDiet.com.  Have a prominent link from that site to the appropriate page on Diets.com for the reader to get "further information."

This link with the proper anchor text should help boost the page in Diets.com in the SERPs.  IF Google doesn't dislike that.

SO...is one idea better than the other? Are neither a good idea? Is there a better way to utilize this new domain?  It's important because this second domain name's keyword is about to get a huge amount of search traffic.

The new, parked domain name is currently registered in the same name as the existing site's name. I could change the registration or privacy it, but I assume Google maintains records of all past registered owners, and if so, I can't really hide ownership.

[MassivePrime]

I'd build a new adsense site on Lowcarddiet.com but I'd host it with a different company so I don't get penalized for having the same C block address for both sites.

To clarify you would only need to do this since you're trying to optimize the two sites for the same keyword,

From what I've seen Google assumes that sites hosted by two different hosts are probably run by separate entities, and therefore links between the two sites are less likely to appear as an effort to game the SERPs.

This of course brings up the question of whether EMDs are still worth buying in which case I would say they are.

Finally the most important question is whether you already have a presence on the first page for that keyword, if you've got the number one spot I would justify making the effort of getting another site there, if not then your time might be better spent improving your rank for that keyword.

Hope this helps

[bizzer]

Thank you for the response.

"I'd build a new adsense site on Lowcarddiet.com but I'd host it with a different company so I don't get penalized for having the same C block address for both sites."

That damn Adsense is always a problem.  Making new entities is such a pain in California with the $800 LLC fee.  But it can be done, with or without an LLC.  I've faced this before and always end up thinking it's not worth the hassle.

"Finally the most important question is whether you already have a presence on the first page for that keyword, if you've got the number one spot I would justify making the effort of getting another site there, if not then your time might be better spent improving your rank for that keyword."

It's in the top five now, however, this keyword is going to be getting a ton more competition in the near future, and I'm thinking the EMD would really help.