These websites are the ones with the online activities. We like Happy Mrs Chicken on the first site, although you can't get beyond 999 eggs (not that I tried, the kids told me you understand :DD)

The Official Peppa Pig website http://www.peppapig.com/

Nick Jr (Au) http://www.nickjr.com.au/site/default.asp?pageID=100&sectionID=124
Nick Jr (UK) http://nickjr.co.uk/shows/peppa/index.aspx

Milkshake (channel 5) http://www.five.tv/programmes/milkshake/programmes/peppapig/