YouTube guides

Three ways to find a YouTube channel ID: copy it from the About section, read it from the channel URL, or find it in the page source.

The YouTube Partner Program thresholds explained: subscribers, watch hours, Shorts views and the other requirements to earn ad revenue.

What YouTube RPM and CPM mean, how they differ, a worked earnings example and the factors that move each number.

The recommended YouTube thumbnail size, aspect ratio and the five sizes YouTube generates, plus design tips that hold up on small screens.