Teachit Primary - A new site with a good bank of resources
KS1 Resources - Some cracking resources here!
School Links - Great website, especially their section on displays
ABC Teach - Lots of printables and worksheets
Resource Shop - Free resource shop
First School Years - Worksheets and resources aimed at KS1 and lower KS2
FunBrain Games - Great games for use in your classroom
Woodland Junior School - Award winning website with tons of free resources
Primary Ideas - Great worksheets and resources to use
Primary Games - Free games to use with your IWB. They are only for evaluation though and so have 'For Evaluation' across the game screen. I still use 'em though!
Primary Games Arena - A wicked site! Especially useful because the maths games are split into topic areas.
Sing Up - Great for the non-singers amonst us! you have to register but it's worth it. Most importantly it's free!
Sparklebox - A site in the news at the moment for the wrong reasons, but still full of excellent resources.
Coxhoe Primary School - What a wonderful school site! Don't you just wish you worked here?!
NGFL - There's allsorts of stuff here - I use it all the time!