Have you considered adding an image of yourself in the sidebar? It may help with the professionalism and help you build a personal connection with your readers.
Hey Thankyou for your comment. I haven't thought about that, and I think it's quite interesting. I may think about doing that. Thanks.
can I suggest an experiment? try to remove the border on each post on homepage, or, do not use black, use gray.. let see..
Yes, your blog looks professional to me. I enjoy reading professional-looking blogs because I think they are so much more visually appealing.
get rid of the pop ups...and the front page is kinda cluttered and im not really sure where i should go to see what i am looking for
If you are getting good traffic, consider installing a well-reviewed wordpress theme. Spend a few hours surfing the major theme companies, you'll definitely find what you want for around $30 - $50 USD. Suddenly, you will look professional. You can occassionally find a good free theme, but generally you get what you pay for then. Consider investing into a theme developed in last six months
Your blog looks good, but you have to rethink few things. Is this blog more of the way to earn money for you or something more personal. Your ads are a little bit overwhelming for the users. Maybe you could place them in a different positions and different place? Also think about that pop up ... its really annoying. Overall its a good site.