To link to your playlist get the URL that looks like http://www.youtube.com/playlist?list=PLCDB148394F4BB16A and make it a link:
To embed a playlist get the embed code that looks like:
<iframe width="640" height="360" src="https://www.youtube.com/embed/videoseries?list=PLCDB148394F4BB16A&hl=en_US" frameborder="0" allowfullscreen></iframe>
On your page click Insert, select More gadgets, search for include gadget and insert the one found. Configure it with the part of the code in quotes after src=
(Make sure it starts "https" not "http")
Adjust height and width attributes as desired.