To insert a Dipity timeline, just enclose the Dipity timeline url like:

http://www.dipity.com/tatercakes/Internet_Memes/

Inside DipitiHM tags like:

[dipitihm]..Dipity URL..[/dipitihm]

Width, Height, and more can be controlled through the plugin administrator or overridden through tag arguments.

To download: http://www.hypermodern.org/index.php/joomla-extensions/dipitihm

Demo and Instructions: http://www.hypermodern.org/index.php/component/k2/item/13

Forum:
http://www.hypermodern.org/index.php/forum/dipitihm