524 libraries (463 buildings and 61 mobiles) currently under threat or recently closed/left council control out of 4517 in the UK
Information on 173 authorities listed out of 206 in UK, 134 of those are on record as (at least) considering closing libraries or making significant cuts (list below news), 57 on record as not closing libraries in 2011/2 (list at bottom)
Legal challenges being prepared/under way in Brent, Gloucestershire, Lewisham and Somerset.  In addition, a judical review has been called about the Culture Secretary’s failure to comply with his legal duties.
Known changes to info on authorities/library funding/opening since last posting
Brent – Legal challenge
Enfield – Plus 3 to total – Up to 3 out of 16 libraries under threat (£1.5m cut over four years)
Glasgow – no closures (or cuts to opening hour cuts to bookfund)
– Lambeth – “every librarian in Lambeth has been told they are having their post deleted. Only assistants and admin staff remain” (via VTFL on Twitter, no other confirmation as yet)

Local News – all news is representative and not comprehensive
Bradford – Philip Davies MP accuses council of cutting library service to make a political point – Telegraph and Argus

Brent – Legal challenge over closures – Harrow Observer
Doncaster – Library comes off hit list – South Yorkshire Times (essential to read first comment after article)
Enfield – Budget cuts could lead to library closures – Enfield Independent
Glasgow – Unexpected Inspiration – Living Scotsman “In these days of butchered libraries, Glasgow stands out like a beacon”
Hounslow – Start of the American Revolution? – Alan Gibbons
North Yorkshire – Huge response to libraries consultation, [council looks to volunteers … and pubs] – Whitby Gazette
Nottinghamshire – Libraries help with finding a job – Council
Portsmouth – Why Portsmouth libraries are amazing and why Portsmouth News should leave them alone – Daily
Somerset – National library campaigner briefs councillors on how to save £1.3m with no cuts – Alan Gibbons
Southampton – Faces most serious industrious action ever – This is Hampshire
Suffolk – Referendum call over council plan to stop directly providing services [like libraries] – EADT
Surrey – Surrey libraries face uncertain future after council decision – This is Local London
Sutton – Angry protests as council cuts agreed – Sutton Guardian (“we intend to keep our main libraries open” [my italics])
Wandsworth – campaigners question plan to save York Gardens Library – Wandsworth Guardian
Wiltshire – “Chalet Girl” writer Tom Williams wrote it in Warminster Library – Warminster People

National News
Curse of the cult of the amateur – IndependentYou probably don’t think that anyone can cut out a brain tumour, but you do seem to think that anyone can run a hospital, or a library, or a school.”
Date names for day of theatre action against cuts – Guardian
Los Angelenos vote to save and improve library service – LA Weekly (USA)
Relief as government secures council tax freeze – Politics “Many of the budget savings will come in the form of cuts to back office functions like finance, human resources and informational technology, but cuts of over ten per cent have also been reported for front-line services like libraries and leisure centres”