Yes, there's the popular complaint that Twitter is full of people posting about what they ate for breakfast. But look a little further and you'll find there are application performance management news items, blog posts, resources, links, and conversations being shared there at any given hour of the day. If you don't tweet and don't understand why you should, here's one of many why-use-twitter articles out there.
I've started a list of people tweeting about APM topics--you might want to follow some or all of them. By all means, post your twitter name in the comments if you're an APM tweeter. ( If you don't see the Reply button, you will need to log in or register.) Or, suggest a hashtag. I'll follow you, and I bet others in the community will, too. At some point, I'll pull all the info gathered here into an application performance management Twitter directory.
Who to follow on Twitter
kmoutsos (that's me, Kim Moutsos, your community manager)
cawilyapm (that's CA's application performance management unit)
APM hashtags
I didn't find any, and it looks like #apm is already taken. Anyone care to suggest one?