I was once a "lurker" on this site -- and even though I am now a SENIOR member

Just click on it, and go all the way to the bottom to "Who's Online?" -- you'll be treated to a summary of what members are currently on the forum (provided they allow this feature in their profile) -- as well as guests, and (here's the cool part) what they are looking at!
I supposed some folks might hmphf it away as a "big brother" feature, but I find it fascinating to see what threads are perennially popular -- and to discover new threads to read via the forums current guests (just click on the thread, and away you go).
Hope this isn't too rudimentary -- but it's something I discovered a few weeks ago, and has enabled me to learn more, and revive topics that have been dormant, but are worthy of a "re-issue." Enjoy!!

PS -- Search is good too -- but I like the surprises you get from Who's Online