Given that you've posted this in 'Motoring', TWR, it's easy to see where you automatically head to ;-)
For anyone who hasn't yet discovered it:
Clicking on the word 'Topics' toggles the full list of all available topics on and off.
I tend to go where there are questions that I might know (or, more usually, be able to research) the answers to.
I regard my 'specialist' area as Travel but I also seem to spend a lot of time floundering around in Technology and Law or typing even greater rubbish in Chatterbank.