Ever forget to log out of your IM client when you step away from your computer? Olark will have built in auto-away in the very near future but until then, your best bet is to do it right in your IM client. That way when your computer is idle for say 1 minute, your Olark widget will automatically display "away" (or whatever you have your widget set to do when you are away). Pidgin and Adium are a snap to set up:
Just open up preferences…
In Pidgin go to the "Status/Idle" tab and change "Minutes before becoming idle" to something suitable for you.
And in Adium, click on the "Status" tab and proceed to set "After __ minutes of inactivity" to something that works for you.
Please post comments if you know of other IM clients that have good auto-away functionality. Thanks!