Another quick post this week, so here's some advice on keeping up with the ever more complex Clone Wars storylines.
You're first and main source of official info should be starwars.com.
First, you can watch the most recent episodes there for free for a limited time (a couple of weeks, usually) after they first air.
Next, each episode has additional information available. Usually it's a plot summary plus new characters or equipment. Sometimes, @holocronkeeper tweets when a new entry is added.
For example, last week I discussed the vocal emulator, and here's the official description.
Finally, there are outside sources that might be interesting to you:
Holocronkeeper's facebook page
Wookieepedia's Clone Wars page(s)
Clone Wars coverage on EUCantina.net