I started it out about 2 years ago to help out people on slickdeals, and posted it in relevant threads. After the first few months, people started to find it useful enough to post it on their own on slickdeals.

Now it's almost entirely promoted by other people sharing links on twitter, reddit, slickdeals, etc. About a month back it got posted to '/r/YouShouldKnow', and got ~3k 'upvotes'. Didn't notice it was posted until I saw the big spike in traffic when looking at the stats for the day.

More recently I've been testing out reddit ads, but I need to work on my targeting (my ctr has been ~0.7%). Paid advertising is a bit challenging for a site like this since revenue per user is on the low side.