By far the most useful jq operator I've used is recursive descent: `..`. It can take a positively heinous json blob and pick out the attributes/keys you care about. For example:

Yikes:

> wget -O - -q 'https://reddit.com/r/unixporn/new.json' | jq

I just want the links:

> wget -O - -q 'https://reddit.com/r/unixporn/new.json' | jq '..|.permalink? | select(.)'