  Getting informed of what is registered in the Web space on time, can greatly
help the psychologists, marketers and political analysts to familiarize,
analyse, make decision and act correctly based on the society`s different
needs. The great volume of information in the Web space hinders us to
continuously online investigate the whole space of the Web. Focusing on the
considered blogs limits our working domain and makes the online crawling in the
Web space possible. In this article, an architecture is offered which
continuously online crawls the related blogs, using focused crawler, and
investigates and analyses the obtained data. The online fetching is done based
on the latest announcements of the ping server machines. A weighted graph is
formed based on targeting the important key phrases, so that a focused crawler
can do the fetching of the complete texts of the related Web pages, based on
the weighted graph.
