Dear colleagues,
Please find below few free sites from eIFL that would be of great help to users
http://www.digitalbookindex.com/search001a.htm : Digital Books Index is a fairly new site which offers simple, swift and direct access to online digitalbooks. Extensive subject headings used to classify more than 73,000 titles records.
http://www.inasp.info/peri/free.shtml :
INASP International Network for the Availability of Scientific Publications,
Directory of Free and Open Access Online Resources
http://www.eifl.net/services/services_journals_doaj.html : Directory of Open Access Journals.
http://www.ehponline.org/ : Environmental Health Perspectives (EHP) is a monthly journal of peer-reviewed research and news on the impact of the environment on human health.