Vedran Vucic has developed a set of RSS feeds for information on science and medical topics, mostly free / open access:
http://www.moj-blog.org/scienceblogs (Aggregator about science)
http://www.moj-blog.org/oncology (various cancer study and therapy issues)
http://www.moj-blog.org/infectious (various infectious diseases including HIV. There are podcasts in tab called Podcasts)
http://www.moj-blog.org/pediatrics(pediatrics and medical child related diseases and therapies. There are podcasts for parents in tab called Podcasts)
http://www.moj-blog.org/disab (disability and special needs isues with podcasts in tab called Podcasts)
http://www.moj-blog.org/endocrinology (this includes many articles about endocrinology including reproductive endocrinology)
http://www.moj-blog.org/web-access (accessibility of web for people with disabilities.
Thanks, Vedran Vucic!