Many times tags in sidenar can not be easily readable which caused problem to many wordpress users to get rid of tags. In order to outcome of this problem, we can create a separate page for that in your blog. I have described here how to create a tag page to display tags in a more readable manner.
To create tag page, just create new page template and add this code in that page template:
<?php wp_tag_cloud(‘number=0’); ?>
The number=0 parameter specifies that you want to display all tags. You can modify it at your requirement.