I decided to try and create a tool that would improve the experience of a Bad Movie Club, or even a Good Radio Club. If you don't know what either Bad Movie Club or Good Radio Club are, they are essentially chatting via Twitter whilst watching a movie or listening to radio. And hashtags are like codes, for example #badmovieclub, that let you filter just the tweets that contain that code.

I've written up the full how-to on my blog, but here's a summary:

First get the excellent Vienna RSS Reader. There aren't any calls in AppleScript that get RSS feeds, so I decided to use this lovely tool. If it isn't already on your system, install the fabulous Growl. Growl is beautiful because it overlays notifications on top of, for instance, the movie you might be watching.

Download TwitterSearchGrowler and HashtagGrowler. When you double-click TwitterSearchGrowler, you can enter your (or someone else's) Twitter username, or a search term like social media. TwitterSearchGrowler then tells Vienna to subscribe to that feed, and then keeps refreshing, showing the tweet messages using Growl. It even shows the twitterer's images using some curl magic and hilarious string handling in AppleScript.

[robg adds: Not being a Twitter user, I haven't tested this one. Note that I created the above summary by borrowing bits from the linked blog post.]