Over on the right side is a link to my ham radio calendar. It’s just an embedded Google Calendar where I’ve been putting radio related things like nets and contests that are of interest to me so that I remember them. Most of the contest type events come from the ARRL’s Contest Corral listings.
I don’t always participate in everything I list, but I like to have them in the calendar as reminders, in case the urge strikes me to go play on the radio.