Is it good if I allow guest posting for my blog?

Yes, Guest posting does help. You should be knowing those advantages better, being a tech blogger. It reduces your work too.

Thanks for the suggestions friends .. I added Guest Blogging option to my Blog today.. Plz feel free to check this out http://www.goharsh.com/guest-post/ . You are also welcome  if you are interested.

Yes, it is good and do look for opportunities to write guest posts on other popular blogs on similar topics..

Yes, true. That way we can build up on our backlink number plus we get exposure to a whole new audience as well..

I've stopped accepting guest posts. People made the blog an "article directory". Beware of Professional link builders.

I don't like selling links. I know as a PR-6 blog the links from my site is much valuable in SEO market. Unfortunately by opening guest posts, people indirectly selling the links through guest post. Now the guest posts are allowed only to the genuine bloggers, who interact with the visitors.

Bye to link builders.

make sense. If you have   a PR6 blogs, too many peoples will come for you with guest posts for back links.