Unlike Web 1.0 was static HTML pages that could be updated only by the owners with some frequency, the Web 2.0 aims to foster collaboration and flexible exchange of information between users of a community or social network and one of the representatives Featured in the application of this technology is the blog or also known as blogs. Both blogs and some other social networking sites, enable content authors to expose their own creation while sharing their views about what others write, blogs have become popular sites and their degree of acceptance and use every day is increasing, but … What has made these sites so interesting, funny or popular? In my opinion … The ability to post comments that in many cases, can be placed even without any records involved. “No comment, a blog not a blog” this is a phrase I read recently on the blog and I totally agree with her. When a visitor decides a say or providing some idea or suggestion which is very appreciated, because honestly we must recognize that bloggers often received very valuable notes and sometimes more interesting than their own, their opinions, ideas or suggestions become a renewed flow of ideas, inspiration for other items, realize the need to make some corrections, links are created and observed reactions are very useful to enrich our work. Dear reader, with this note I intend to invite all web surfers to use the comments space that appears on blogs, but mostly, I wish to thank all those who have ever participated in or who do so regularly, my intention is to make a sincere appreciation all that is worth their collaboration, as it provides us with a renewed motivation to move forward in the quest for continuous improvement. Thank you.