Disclosed are a system and method for distributing a blog post based on personal networking, and a server to be applied thereto. The system includes a writer terminal unit, which makes a series of settings for forming a blog post containing contents posted by a writer through the writer's blog registered with an online community service, and then distributes the blog post to at least one or more acquaintances blogs registered to personal networking with the writer, sharer/distributor terminal units, which make setting for posting the blog post on the acquaintances blogs, or distributing the blog post to at least one or more other acquaintances blogs registered to personal networking with sharers/distributors, and a service management server, which differentially provides management authority for the blog post to each of the writer and the sharers/distributors, and integrally manages the blog post distributed to a plurality of blogs, based on a path along which the blog post is distributed. The system and method distributes a blog post containing a writer's specific purpose of posting, such as a help-wanted notice, step by step through blogs registered with an online community service, based on trust relationships, thereby providing a notice platform, which is so efficient that an advertiser who writes a blog post, such as a help-wanted notice, can quickly find a qualified person, based on his/her trust relationships.