www.dictionary.com defines ramble as:
1. To move about aimlessly (roam, wander, meander).
2. To walk about casually or for pleasure.
3. To follow an irregularly winding course of motion or growth.
4. To speak or write at length and with many digressions.

I've done all four, but it's the last one that's on display here -- random essays, opinions and chatter. Roam if you want to...