If you are like me you probably have a tumblr.com blog or a tumbleblog.  One of the challenges there is that it is not easy to display the tags at the end of the post or a tag cloud in the sidebar.

I did a bit of research and what I have been successful in doing is to display tags for each post in my tumble blog.

1. Make sure that you enable custom HTML in your theme (copy all the code and paste it in a notepad file as a backup in case something goes wrong).
2. Now go at the very bottom and look for these two lines of code (if you copy the code from my page, make sure that you first paste it into a notepad file so that all the formatting is gone and it is clean code): end div tag before the {/block:Posts}

3. Once you find it, just above the  line, add the piece of code found on this page under the 
    title "Tags Example and from {block:HasTags} to {/block:HasTags}.

4. Save it and you should see tags in a bulletted order at the end of each post.  Here is an example.