My favourite site for another of my interests has a Tab labelled "What's New? - 24 Hours". When you click on this Tab, you get a list of links to every thread that has had a posting made to it in the previous 24 hours. Using the Tab makes it really easy to check what is new without having to trawl through the whole site.

There is also a mechanism that flags those threads where you have posted something and someone else has posted after you. Great for following conversations.

Just have a look at the site: http://www.recreationalflying.com.au/

Old Man Emu