I run an LJ toy (ljmindmap.com) and I want to notify people via the Messages system when I have new data for them (or just produce the data itself in the email, or email a link to a post that itself has the data for the user).
could be automated easily, or will there be hassle, or is there a proper API somewhere to send a note to a user. I know it's subject to caution due to spam etc. my list is all opt-in. any clues welcome.
