Here's an introduction to some of the capabilities of EasyBlog - my fav blogging utility that dovetails with Joomla.

Here's my 'short list' of why EasyBlog, used within Joomla, is the 'way to go'...

Multiple Blogs on the same website:
Supports multiple blogs with the ability of using their own themes.

Professional Themes, or use the website theme:
Stylish and professional themes for both personal and professional blogging

Micro Blogging Updates:
Automatic posting to famous social networks when you create a new post

Automatic Notification to Subscribers:

Yup, it does it all for you!

Rich Comments:
Built-in commenting system allowing users to interact easily

Compose Now, Edit Later:
Peace of mind by drafting your blog posts and editing it later

Media Management:
Organize your rich media files with a built in media manager

Simple Dashboard:
Functional yet effective dashboard (used on the 'Frontend' i.e. on the web page. Less is more in getting things done

RSS Feeds:
Let visitors stay updated to your blogs by subscribing to RSS feeds

Scheduled Publishing:
Schedule your blog post to be automatically published when it reaches the desired time

Your Own WYSIWYG:
Choose your own WYSIWYG editor from the editors in Joomla!

Tagging:
Rich content for Search Engines by tagging your blog posts

Rating System:
Integrated 5-star rating system allowing users to vote their favorite posts

Spam Protection:
Eliminate noisy spam comments with built-in tools

Featured Blogs:
Displayed in a nice slider environment allowing easy browsing

Tons Of Modules:
Tons of modules are provided for FREE to assist you in setting up your blogs

Protect Your Post:
Password protecting your post to share to only those with the access

Categories:
Organize your blog posts in proper categories

Avatars:
Integrate your avatars with your fav social forums