By all accounts, Twitter seems to be an excellent way to keep people informed of developments and we are starting to use it to communicate with DynoChem users. If you follow this blog, or are a member of DynoChem Resources or our Google Group, I encourage you to follow DynoChem on Twitter.
I have been using Twitter for several months and find the short postings (about 1 sentence long) a very efficient way to catch up on news quickly. It's easy to opt in or out and better enables a two-way relationship than e.g. RSS feeds. There are lots of Twitter clients for smartphones; I use TweetDeck.