• Center for Male Reproductive Medicine and Microsurgery At Cornell University Weill Medical College. Provides the most updated information and success rates for vasectomy reversal, no-scalpel vasectomy, varicocelectomy, testicular and epididymal sperm retrieval; treatment of obstructive and non-obstructive azoospermia for male infertility.

• Infertility-Male Information men's health issues by Dr. Larry Lipshultz in Houston, Texas.

• Male Infertility Specialists National directory of male infertility physicians. Includes information on member specialists in each US region.

• Maze Labs - Male Infertility Centers Comprehensive fertility testing including semen analyses, cryobanking and sperm washing. Labs located in NY, NJ, and CT.

• Semen Analysis Home Test Kit At home, confidential semen analysis test kit available through Evolution Diagnostic Laboratory, Inc.

• Sperm Donor listing - US based spermbanks Listing of US based Sperm Banks and Sperm donors.

• Varicocele Specialists A national directory of physicians expert in varicocele repair and many FAQs about varicocele.