I suppose this isn't a freebie as you have to sign up to the broadband or the mobile, but follow the instructions and you get a £50 arsenal voucher.
The best value is if you are an existing 02 mobile customer.
Pick the basics, after 3 months free it's £73.53 for the year, and after that no more contract. After Quidco that comes down to a tiny sum of £23.53.
If you look at it from one angle that's broaband for £23.53. AFTER QUIDCO IT'S BROADBAND FOR MINUS MONEY!!!
Pick the All Rounder, it's the best value. £110.25 after the free 3 months, plus quidco taking it down to £60.25, and then a £50 voucher.
So, for £60.25, you get fast broadband for 12 months, and a £50 voucher. For Arsenal fans, that is superb.
There are other options on there, but if you are looking for o2 broadband the all rounder + quidco is the best value.
To top it all off:
Arsenal fans who have an o2 sim: £60.25 after quidco and three free months for fast broadband, plus a £50 voucher!!!
EDIT: Right this could cause some confusion. Let me explain.
ALL ROUNDER BROADBAND: £110.25 for 12 months after 3 free months
£50 Quidco = £60.25 for broadband
£50 Voucher = £10.25 for broadband...