There are six types of link submissions that can be submitted for a review which are briefly discussed below:

1) Paid Submissions – Here, a fee will be charged for reviewing the submitted link.

2) Reciprocal Link – The site submitted should definitely link back to the directory if it wants to be listed.

3) Free Submission – No fee/charge is required for a review of the site.

4) No Follow – Here, search engines will not follow the link as there is a ‘NO FOLLOW' tag associated with the link

5) Featured Link – Here, the link is given a top position in the category where it is submitted.

6) Featured Homepage Link - Featured Homepage Link means that the link can be listed on the homepage of the directory

Some directories have a general attitude in focusing and they list all links while others focus on merely a particular area. Directories are categorized as either niche or general directories by the experts.

Directories have gained mass popularity as people who engage in search engine optimization tend to augment the number of links pointing to their site. Submitting to directories is a working method for attaining more and more links.

Human edited directories are perceived as an essential part of a strategy for being indexed in Altavista, Google or other well-known search engines. The idea behind it is that a new site needs to quickly build inbound links from high profile sources for having a higher ranking within search engine outcomes. The directories, however, may confine search engines from rating a displayed link by using techniques like no-follow attribute, redirects etc.

In a nutshell, A human-edited directory is engendered and taken care of by editors who add links to their directory, which is organized into distinct pages for categories/sub-categories.