Government website covering all aspects of employment - starting a new job, pay, redundancy, holiday pay, minimum wage, etc. If you are looking for a job around EC3N just enter it in the box.
Acas aims to improve organisations and working life through better employment relations. They provide up-to-date information, independent advice, high quality training and work with employers and employees to solve problems and improve performance.
Dept of Business, Innovation & Skills (formerly Dept for Business Enterprise and Regulatory Reform.) Their Employment section has information on redundancy, migrant workers, statutory pay, disputes, etc.
HM Revenue & Customs website with information about employment for employees and employers.