Improvely (https://www.improvely.com) and W3Counter (https://www.w3counter.com) have grown to $45,000 MRR.

W3Counter is completely passive -- no new code or features in over a year, no customer support load, autoscaling frontend (EC2) and backend (Aurora). Improvely gets feature updates a few times a year and has some light e-mail support load. I continue to have no employees or contractors.

Trying to diversify more in 2016.