Why are .com sites ranking highly in UK SERPs?

For a followup post about this video, please see: www.mattcutts.com guavarian from the UK asks: “Why are the UK SERPS still really poor with irrelevant non UK sites (US/Aus/NZ) ranking very high Google.co.uk since early June?” Thisvideo is part of a “Grab Bag” series in which Matt Cutts, head of Google’s webspam team, answers questions from users. We’re not currently taking new video questions, so your best bet for getting an answer about webmaster-related search issues is to head to our help forum: www.google.com