Link exchanges are not an idea we have entertained in the past but we have recently had a request for a link exchange from a company very similar to ours based in austria. They advertise it as 'a link from a PR4 site'. Their home page is certainly PR4 but the page they'd link to us from has no page rank.
Also, our own website has PR5 on home page, with internal pages gaining
PR over the last year or so.
The link would also be a straight link with no anchor text.
How much value would this link hold for us? Would it be of any value to us to link back to them (you have to reciprocate the link if you want one on their site). Would it in fact be detrimental to our own
PR to link to a site of lesser
PR, and do reciprocal links hold any value these days?
I hear so much about Page rank and I know there are lots of different theories around, but any advice here would be great.
Thank you