Two different businesses on one domain, penalty or not?

[Mauidan]

I have a high page rank "6" on my website.

Today, I created a page on my domain for my girlfriends (existing) real estate site. I connected to her php's, such as the MLS database as well as a few other database's. I know I can get this site way up there riding my coat-tails as opposed to her getting a new domain and starting from scratch in that competitive field. This is really working on me.

Could having a completely different business, description, keywords have potential page rank ramifications? Since unrelated to my primary business, will I get penalized in any way? Thanks, Mauidan

[LifeinAsia]

Better to just get a new domain for her site and link to it from yours.

[caine]

Could having a completely different business, description, keywords have potential page rank ramifications?

Potentially Yes. Penalized not so sure, but you would defiantly be degrading the site's authority in its industry, if its very niche you may get away with it. However if its incredibly competitive, probably will hurt. I agree with LifeinAsia.

[Mauidan]

Thank you LifeinAsia & caine,

>degrading the site's authority in its industry

Interesting angle, we did get a new domain last night and hosting.

I was thinking with my page rank, by piggy backing I could get her to the top easier. (In theory, is this true?)
But, it sounds like it may have a backlash.

[Pixel_Ink]

Page rank is relevant to the niche and the gravity and density of that niche.

It is not transferable across niches (as a strategy). If it was that easy, search results would be worthless.

Short cuts never work online anymore, just do the work and do the time!