Hello! If I exchange with sites co.uk, it give me better position in SERP in google.com or only in google.co.uk ? Best Regards.
depends on the location of your site and also the ltd of your website, is it also a .co.uk site ? if that's the case you will mostly get better rankings in the UK google. if you have a .com then i'd say the uk links will help ur rankings both in the UK and international google.