Textbooks for use on Research Methods courses

I've just been updating the subject specific book lists in the resources section of the site:General Introductions to Social ResearchGeneral Introductions to Research Methods in Business StudiesGeneral Introductions to Research Methods in EducationGeneral Introductions to Research Methods in PsychologyGeneral Introductions to Research Methods in HealthIt would be great to hear from anyone who has used any of these books on what they thought, or if anyone has used other books which are not included, this is the place to share your recommendations.Many thanks,Harriet