Vaccine Provider : Walgreens
Who can sign up: State of Maryland's 1A-1C (does NOT include most people under 65 with pre-existing conditions. )
Information: They offer vaccines in some of their MoCo locations, although these run out very quickly. Walgreens is vaccinating MoCo residents at Maryland locations outside of MoCo. People who have successfully booked Walgreens appointments say that you're most likely to get an appointment if you try to do so around 7 AM.
Vaccine website: https://www.walgreens.com/topic/promotion/covid-vaccine.jsp
Sign up for vaccine alerts (you will need to create a Walgreens account): https://www.walgreens.com/register/regpersonalinfo?ban=covid_vaccine_landing_alerts&fromPage=enableLyt&ru=/register/mywag/covidvaccine/updates
Sign up for additional alerts (third party platform, not affiliated with Walgreens, but useful) http://www.covidvaccinetexts.com