MBSR is one of the most thoroughly researched secular meditation programs. This link provides a brief history and links to scholarly research on the impact of MBSR on health.
National Center for Complementary and Integrative Health (NCCIH) provides this page with research about the impact of meditation on a variety of health conditions
"...dedicated to inspiring, guiding, and connecting anyone who wants to explore mindfulness—to enjoy better health, more caring relationships, and a compassionate society."
Daily meditations based around a theme, with the intention of helping starting a practice by committing to 21 days. These are offered regularly for free around various themes. Sample meditations are also freely available.
One of the first teachers to introduce eastern meditation as a secular practice in the US. Many resources are freely available from this site. Best known for her work with lovingkindness meditation. Also offers a 28 day meditation challenge based on her book, Real Happiness.
Regularly offers workshops and events that support mindfulness practice. Also offers facilitated, weekly drop in group meditation sessions, including one in Ypsilanti.
"...a non-profit organization dedicated to making a difference in education through awareness and training of mindfulness practices. We are growing a professional network of educators in Michigan who have a passion for cultivating and teaching mindfulness in students, families, and educators."
Ann Arbor's Crazy Wisdom Bookstore publishes a quarterly magazine that includes a calendar of events that includes many meditation and mindfulness opportunities both secular and spiritual.