Personal blog challenge [Site]

I'm trying to find ways to build my blog. One idea I've read about are "blog challenges", most frequently the "30 Day Blog Challenge." I want the entries on this blog to be meaningful, so I'm not going to subject you to forced ramblings every day for a month. What I've come up with is my own personal blog challenge.

I am challenging myself to create posts in three categories (labels to look for are bolded):

1. Geeky post. I will find a way to relate whatever nerdy tech idea I write about to the classroom. That's part of the challenge.
2. My classroom post. I'm going to put out there what I'm doing in my classroom. Use it, change it, critique it, challenge it, share it, ... verb it.
   
3. TAG post. A post about what is up in the world of TAG, G/T, ELP, whatever we're calling it today. A post about what I've been reading about, discussing with colleagues, or hearing about in professional development.

So that's my challenge to me. Any other ideas? Want something different? Let me know in the comments.