TRACKBACK.
This helps in maximizing company and product exposure. Through this service, consumers can get back to you for more posts and updates without the difficulty of locating you. If your blog is popular in a specific online community chances are links going back to your blog site are everywhere online, other blog sites or even websites.
CATEGORIES AND TAGS.
These both help in classifying blog searches for ease of navigation and on site search. Categories act as libraries because it classifies posts by subject matter such as business, distance learning, e-commerce, online auctions, etc. Tags, help in the classification, especially in the blog search engine Technorati. Possible customers and new clients locate blogs about certain topics of interest by just clicking the tags.