Welcome to the Q&A Forum

Having some level of structure in you site can be helpful for analytics, too. For Moz for example, we can look at everything happening on the blog by looking at /blog, everything on Q&A by looking at /community/q/, etc.

Thanks to you both.

Better looks to prepare a comparative checklist on factors yahoo, bing and google give importance. Repeat the same on competitors will lead you to the final decision.