Lost Friends Some ways to search for lost friends and relatives in UK

Looking for living people may have sensitive issues. People are aware of this and they may not want to tell you if they know the person. Those people should contact the person and see if they want to talk to you. The following may help

The Salvation Army Family Tracing Service - http://www1.salvationarmy.org.uk/en/Departments/FamilyTracing/Home.htm

Also on Facebook there are Groups who help find Lost Friends etc

Address Lookups UK

New in 2011 - looks like some free searches allowed Ancestry.co.uk / Living Relative Search / Peopletracer

Click on Postal Codes on line. Enter street address and submit. http://www.royalmail.co.uk/paf
British Telecomm http://www.bt.co.uk/index.jsp then select Directory Enquiries.
This will give you 10 free searches per day without registering or 200 extra free searches by registering.
Also http://www.thephonebook.bt.com

http://www.ukphonebook.com/ a pay site

192.com is a directory and electoral roll - a pay site
General people lookups - some are just USA

Free People Search by ZabaSearch!
Free People Search - Find People - Wink - found me on Facebook
ZoomInfo
Pipl - People Search found me in many places
Who Is This Person? :: Add-ons for Firefox includes some of sites mentioned above
Invisible Web Directory - Search The Invisible Web With A Web Directory

Genealogy Message Boards

Various sites have Genealogy Message Boards - with Surname boards. These are very good for finding information on your folks. BUT more to the point I have found many cousins including two first cousins (twice removed)
Hence my favourite because of people found is Genforum http://genforum.genealogy.com/my/

But I also like the Rootsweb and Ancestry message boards - These are the same boards but with a slightly different interface.
These sites like you to register and this service is free. It is not part of an Ancestry chargeable subscription. (there are other places offering these kind of service but I have not used). I have seen people looking for current relatives

Also do search for names at www.google.com - sometimes amazing what you find.