There is a difference between *accomplishing* and *participating*.
The latter just requires you to show up. It's resume filler. Quite a number of applicants have a list of these so-called "extracurriculars". They may even genuinely believe in what they're doing, but they don't really have much to show for it because they simply haven't put enough time and effort into such activities to leave any real impact or legacy.
The former requires years of dedication, focus and sacrifice. You don't become a nationally ranked athlete (or competing at such a high level) by being casual or signing up the week before. You don't become a semi-professional musician or touring artist by deciding you want to learn an instrument last week. You don't lead a successful non-profit that has a substantive impact on the community by starting something up casually with friends.
Adcoms aren't looking for specific organizations or a laundry list of groups you've "participated" in. They are looking for accomplishments - because you only accomplish something truly notable through sustained commitment -- there's a cost to everything.
If you haven't done much outside of work, whatever you sign up for today won't really impact your b-school application this year or next.
Put it this way. If it takes years to become an accomplished engineer with notable technical achievements, what makes you think it's any different with any other endeavor? This doesn't mean you shouldn't get involved or that you shouldn't strive to improve yourself (regardless of b-school), but that if you truly want to achieve or to do something you're proud of (and something that might impress others if that's what drives you), it involves far more than just signing up for Toastmasters, Rotary Club, or whatever random organization to put on your resume - it involves a lot of time, effort, and sacrifice in pursuing specific things that you find truly meaningful to you, and not expecting the results to happen overnight.
Alex Chu
alex@mbaapply.com
www.mbaapply.com
http://mbaapply.blogspot.com