Co.uk Domain

I have a nearly 3 year old .co.uk domain, with page rank n/a. I'm looking to make a few blogs with high page rank, currently my network consists of page rank 3+ .coms, is it worth working on a .co.uk, getting it a decent page rank and using it to sell link space to customers who are looking for link juice?

Thanks

PR and link juice has nothing to do with domain extension, so I don't see why not.

Yea the extension nothing to do with link juice at all...

I'm sure it couldn't hurt.