Harry Potter Places http://www.harrypotterplaces.com/
A series of PDF guidebooks for fans available for a modest price that describe in detail the locations used to shoot the Potter films.
As some may know I frequent Swinley a fair bit for mountain biking and got to see some goings on there for the films, hence a few posts here about it. Result has been I was asked to provide some assistance with some local information and a photo to the author of these books and the third book has some detail on Swinley (or actually as a supplement in more detail as for people looking to check out locations it’s going to be near impossible to identify the locations unless you know the place and saw where they shot the stuff, like me).
Reading through, as a local one thing I didn’t know is very nearby to Swinley is Harry’s house (round by Martins Heron), or at least the original one. The locals asked too much to film there after that so Warner built a replica of the street on the studio backlot!
A little credit in there too. Woohoo, name in print! of sorts :). A thanks to Chas for producing these books and the impressive efforts gone into to researching it.