I strongly recommend to run your own blog.
Running a blog has following advantages:
- It takes an advantage when you try to get a job. Recruiters and head hunters can find what you have through your blog.
- You can improve your communication skills running your own blog. Writing an article would be a good practice if you do it considering readers.
- You can earn some money by running your blog. Google provides smart ad system called Adsense. If you could write a good article attracting many people, you'll be paid!