Blogs don't rank well anywhere just because they are a blog. This is a myth. The blogs that rank well do so because they have good content. If they weren't blogs they would rank just as well because of that content.

If you aren't willing to blog regularly with good content don't bother as just having a blog will do nothing for your rankings.

you could try writing some articles because if its good people will certainly take notice

I use blogs but Stymiee right - good content is the only thing a blog can dream about)))
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As the content is the king, and moreover refreshing content is seen regularly, the blog stands high in SEO strategies.

Blog is the best bet for getting traffic and good rabkings provided you keep it live with posts at regular interval.

Since blogs come with some in-biult services like pings, RSS feeds etc, it can be a great help if done properly.