USA based job-seeking website.
There are so many women with children who want to work, but not at the expense of family life. 
Women Like Us bring women confidently back into the workplace after taking a break to raise a family.  At all stages of their working lives, they help women find part-time or flexible work that uses their skills and talents.  They work with employers who value skills and experience more than
round-the-clock availability and who know that part-time roles can save money, boost motivation and keep talent in the workforce
The CBI helps create and sustain the conditions in which businesses in the UK can compete and prosper for the benefit of all.

They are the premier lobbying organisation for UK business on national and international issues. The CBI works with the UK government, international legislators and policy-makers to help UK businesses compete effectively.

Employers section of the HMRC website with information about registering, PAYE, NI, etc.
Useful info for SMEs regarding redundancy, employment tribunals and discipline.
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 ZE2 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.