The number of SQL Server events in the UK are still increasing in 2013.
SQLBits XI Nottingham 2–4 May
http://sqlbits.com/
SQL in the City, London 21 / 22 June
http://sqlinthecity.red-gate.com/london-2013/
SQL Relay 2013
http://www.sqlrelay.co.uk/events/2013.html
Glasgow - Monday 17th June 2013
Leeds - Tuesday 18th June 2013
Birmingham - Wednesday 19th June 2013
Norwich - Thursday 20th June 2013
Cardiff - Monday 24th June 2013
Southampton - Tuesday 25th June 2013
Reading - Wednesday 26th June 2013
London - Thursday 27th June 2013
PASS SQL Saturday
http://www.sqlsaturday.com/
Jun 08, 2013 SQLSaturday #202 - Edinburgh 2013
Jun 22, 2013 SQLSaturday #229 - Dublin 2013
Sep 28, 2013 SQLSaturday #228 - Cambridge 2013
SQL Server User Groups
http://sqlserverfaq.com
SQL Lunch
London, Cardiff
Other Non UK Events
PASS Business Analytics Conference
http://www.passbaconference.com/
April 10-12- 2013 Chicago, IL
SQL PASS
http://www.sqlpass.org/summit/2013/
October 15-18 2013, Charlotte, NC
PASS SQLRally Amsterdam
Amsterdam on November 6-8 2013
http://www.sqlpass.org/sqlrally/2013/amsterdam/
PASS SQLRally Nordic
Stockholm on November 4-6 2013
http://www.sqlpass.org/sqlrally/2013/nordic/
