<p>EC's are certainly NOT limited to designated clubs at school. It is anything that you devote yourself to ongoing. Depth and commitment to an EC is a nice plus for your college application. It is usually pretty clear if it is something you do sincerely or just to list on a resume. The writing seems like it may be your strongest EC, if you present it well.</p>
<p>I think that people here are suggesting ways to deepen your 'demonstrated' commitment. You already have some of that with your school lit mag publications, the outside class you took, better to list stuff done in HS than 8th grade, but a first is a nice award. Does your English teacher know of your interest and work? Your guidance Councillor? Will they be able to back up this independent work? I don't think starting a writing group would add value particularly, but getting involved in the lit mag is worthwhile. Another college class or workshop is worthwhile because writing is an ongoing process. It will help you to keep getting feedback to improve rather than just write with no guidance, input, etc.</p>
<p>Many bookstores host writing groups (I have a friend who goes to a Calif writers one at Borders books.) If you can't find one for your age group, you may be able to join an adult one. Here writers read excerpts from works in progress and get feedback and constructive critique. It is a brave thing to do, but valuable.</p>
<p>Submitting your writing for contests and publications is a good idea, as it will cause you to hone the work and you may get more feedback that way as well. Imagine Magazine has a writing issue in Dec 09, it can be back ordered. Here is a page from them that lists extensive writing resources, workshops, summer opportunities, contests and submissions opportunities. I suggest you take it to the next level and get involved with some of these.