Right now, I'd say I'm most competent in VBA and C# (and C/C++) with a fair level of experience in SQL. As far as languages, I'm interested in learning more about those commonly used for web development and Python. I'm currently starting a blog about tacos to a) get some experience with WordPress and b) increase the number of tacos in my life.
I'll add a link when the blog is ready. I'm also creating it as an assignment for a fantastic course on Udemy by Rob Percival, The Complete Web Developer Course 2.0, which I highly recommend.
I'm also very interested in any kind of statistics and modeling, machine learning, data science, genetic programming, and the like. Another incredible resource I'd like to recommend is Andrew Ng's machine learning course offered by Coursera.
Stack Overflow and the community it's created have helped me countless times at work and on my personal projects. I'm excited to be able to pay forward and help others with their problems.