UK People Search News is a weekly newsletter about searching for family and friends in the UK.
Londoner Giles Higgitt writes that his "work is a combination of the skills of a private investigator and a genealogist." He is a professional investigator who can be hired, of course, but his blog and weekly newsletter are free of charge and provide many interesting tips and resources.
Although geared to those searching in the UK, his insights, tips and advice are useful to researchers in any country.
Tips include searching for people through their work, searching through blogs and online communities, how UK and US searching differs, first-contact letters, reunions, the "investigative mind" and much more. Do check his archives from January for very interesting topics.