Windows SharePoint Services provides a blog template that makes creating a blog easy.
A blog can contain lists and libraries & lots of information, such as a list of blog posts, a list of other blogs, and a library for photos.
To create a blog, you must have permission to create sites. For more information, see your site owner or administrator.
For complete application visit office.com/setup
How to Create a Blog in Windows SharePoint?
Click View All Site Content
Click Create on the All Site Content page.
In the Web Pages list, click Sites and Workspaces.
In the Title and Description section, enter the title and description for your blog.
In the Web Site Address section, enter the last part of the Web address that you want to use for your blog.
In the Template Selection section, click the Collaboration tab, and then click Blog.
Select the Permission section.
If you want to use the same permission and groups as the parent site, click Use same permissions as parent site.
If you want to set up unique permission for the blog, click Use unique permissions.
To display the top link bar from the parent site on pages in your blog, click Yes in the Navigation Inheritance section.
If the Set Up Groups for this Site page appears, set up the visitors, members, and owners of the site.
For more details, visit : www.office.com/setup.