PhysLink.com is a web directory supplying links to physics and astronomy education, research, and reference sites, and some original content. The education page features an ask-the-expert blog feature; links to sites on the history of physics and astronomy; a small collection of essays on science, philosophy, and art; links to physics, astronomy and math software reviews and to web sites about astronomy and about new theories; and links to resources for graduate students, for educators, and for youth. The references page provides links to tables, glossaries, mathematical and astronomical constants, exact current time, and other materials. The directory page features listings of university and college departments, online technical schools, professional societies, journals, and other organizations. Other materials include news articles, job postings, jokes and humor, and physics-related items for purchase.