MegaSack DRAW - This year's winner is user - rgwb
We will be in touch
A bikey one - @bigringriding (links into his blog)
A non-bikey one - @M_Ahmadinejad though not sure he's the real deal 😉
@viztoptips
@evanscycles often have offers and stuff exclusive to twitter / facebook
I like stephen fry, rob brydon and david mitchell too 🙂
am I allowed to plug my own here too? I will anyway... @becky_kirk43
Me! @ukcougar.
More seriously, depends what you want. BBCclick and BBCtechbrief are interesting if you're a geek, ditto SFXmagazine. Comedians like BillBailey, DaraOBriain, GaryDelaney and others. Chilean_miner is very funny if you're not oversensitive, GeneHunt is good too.
Biking-related, mtbgirly - author of www.loulouk.co.uk and my OH so I'm biased, but go read the blog, it's ace.