I love classic movies and music, especially those from the 50’s and 60’s. Would starting a blog about these be a good extracuricular? Would blogspot be a good website to use?
If you’re heart is into this, then do it. Don’t try to filter your love affair with a subject based on whether it will get you inot X college or not. Your heart and your passion speak louder than choosing some sort of major that’s somehow seen as more proper. Start that blog! There’s life after and around college.!!! You will never regret doing what you love.
ECs mean almost nothing to most colleges. They matter for the very competitive ones where meaningful ECs help distinguish among many top academics. Do your blog. But it won’t likely affect anything for your college applications