373 libraries plus 32 mobiles currently under threat or recently closed (List below “News”)

Brent- Candidate for councillor thinks libraries closures is top concern – Harrow Times

Dorset – list of the 20 libraries that could be closed – Bournemouth Echo

BookSeller launches site to oppose library closures – BookSeller

List of cuts by authority (click on name of authority for link to relevant report)
Aberdeenshire – some, (brief mention here seems to suggest all but this very unlikely)
Angus – 4 libraries closed this year (April) to be possibly replaced by a mobile.  More info here
Argyll and Bute – 3 libraries and mobile library.
Barking and Dagenham – 5
Barnet – some – public consultation here
Barnsley – up to 8
Bedfordshire – 1 mobile to go
Bexley – 3
Birmingham – 39 (three libraries lose hours so Tower Hill can remain open)
Blackburn with Darwen – (reduced opening hours)
Bolton – Up to 8
Brent – 6 (out of 12)
Bromley – (KAB talking books cut)
Buckinghamshire – up to 14 to close or be staffed by volunteers (this article says 11)
Bury – 1 (1 other reduced hours) – Manchester Evening News
Cambridgeshire19 (mobile services already “slashed”) (£1.1m cut)
Camden – several plus one mobile library (£2 million cut)
Central Bedfordshire – one mobile library to go
Conwy – 7 (out of 12)
Croydon – Up to 6 (public gets to choose which) plus 1 local studies
Doncaster – 14, (may also be taken out of council control)
Dorset – up to 20 (out of 34) to close or be given to community groups  (£143k off bookfund).  Dorset is the sole council to receive an actual increase in funding for 2010/11.
Dumfries – 7
Durham – some
East Sussex – (£313k cut)
Falkirk – (transferred to Trust)
Flintshire – 5 and at least one mobile
Gateshead – some (school library service, music library, AIRS talking newspaper under threat)
Gloucestershire – Up to 18 and 6 mobiles  – 11 to close or go to volunteers. 7 to close if they don’t find a partner.  A further 11 reduced to 3.5 days a week (this is such a small figure I include them under “closed”), 6 mobile libraries to go.
Greenwich – (could be turned into a Trust)
Hammersmith and Fulham – 2 and 1 mobile
Hampshire – (58 FTE jobs to go) (and mobile libraries cut within two miles of each branch, this report says 18FTE to go)(libraries merged with IT/property etc)
Haringey – (staff cuts)
Harrow – (34 FTE to go)
Hartlepool – 1 confirmed to close (another to merge with community centre, all library’s hours cut)
Herefordshire – (new Ledbury Library delayed)
Hertfordshire – (opening hours to be cut by one third – from 2236 hours down to 1575) – At least one library (Borehamwood)  faces a 40% cut
Highland – (Wick Library to close and merge with school library) (may move to being in a Trust)
Hounslow – 8 (out of 11, £870,000 savings this year on top of £1 million in the last 18 months).
Hull – some (to merge with “customer service centres”)
Hounslow some (£869k p.a cut – reduction in hours,12 FTE to go, 1 IT skills suite closed)
Inverclyde – some
Isle of Wight – 9 (out of 11) – most serious I am aware of, consultation ends 7 Feb
Kent some (volunteers to be asked to run some) (83 FTE to go as self-service comes in)- Isle of Thanet one of areas hardest hit
Kirklees – at least 1
Lancashire – 2 mobile libaries (plus 16% staffing cut)
Leeds – Up to 20 (out of 52)
Leicestershire – all libraries could be privatised, put to trust or shared (merge of lending/reference- 14 FTE jobs lost)
Lewisham – 5
Liverpool – some
Merton – (2 libraries will have reduced hours)
Milton Keynes – 2
Newport – 7
Norfolk – (£1.2m proposed cut)
Northern Ireland – 10
Northamptonshire – 8 out of 38 may close, 2 mobile libraries to end. Cuts to management and support also.
Northumberland – some
North Ayrshire – some 
North Lanarkshire – 1 (closed March 2010)
North Norfolk – some (c. £1m reduction)
North Somerset – 1 closed, 2 proposed, volunteers may run libraries. Weston Mercury update
North Yorkshire – 24 (out of 53) to close or be staffed by volunteers, 9 mobiles to go off road.
Nottingham – (80 FTE jobs to go, 75% off bookfund, 30 libraries have less opening hours – down to less than 10 hours per week) , 1 library already closed.
Oldham – (increase in volunteers, merging, cuts)
Oxfordshire – 20 – list of those under threat here, Oxford Central hours extended to 7 days per week 
Redbridge – 5 out of 12 may close, another may relocate.
Renfrewshire 1 (1 library to move into smaller sites in community centres)
Richmond – 1 (£351k cut) (service may be privatised)
Rochdale1 (some library managers to to go in first phase of cuts)
Rutland – (6 libraries to have reduced hours, staff cut)
Salford – some
Sandwell – some
Sefton – 3
Sheffield – (30% cut expected)
Shropshire – 2 and 3 mobiles(reference library to merge with central library)
Somerset –  20 (out of 34) will be offered to community groups. 4 (out of 6) mobile libraries will also go.  Ten other libraries will have a 10% reduction in hours. List of closures here .Consultation period ends on 14th Jan. Rethink on mobiles may happen – article here.
Southampton – 2
Stoke – 2 and 1 mobile library, (ends RNIB service)
Suffolk – up to 2 – (one appears to Woodbridge)
Swansea – some
Thanet – some
Thurrock – (RNIB subscription ends)
Tower Hamlets – (staff made to reapply for their own jobs -23 library staff replaced)
Wakefieldat least 2
Walsall – 6 (30 FTE). More details here .  Count cut from 8 to 6 due to article here
Walthamstow – some
Wandsworth – 1 (mention in Guardian here) plus reduction in hours in others.
Warrington – 2 and 1 mobile library. More info here. Journals stopped also, £25k off staff. £10k off reference.
West Dunbartonshire – 3 (some staff losses too)
West Sussex Some (5 FTE lost, some librarians pay reduced to library assistant)
Wigan – Up to 15 out of 17  (£1.1m cut off £4m budget)
Wiltshire – (26 FTE posts have gone in Dec 2010  inc. 9 out of 13 community librarians)
Worcestershire – some (Pershore library to move out of town centre)

Authorities which have announced no library closures
Anglesey – 4 libraries earmarked for closure have apparently been (temporarily) saved
Cornwall – (one stop shops moving into them, book supply being done differently to save money, no guarantee for 2012)
Devon (may have reduced opening hours, less mobile stops, no new Exeter Library – although this article suggests mobile library service has improved)
(number of libraries actually increasing here)
Moray – (may move to being in a Trust, another article here)