I recently had to create a Tag Word Cloud for a video I was making and I found this really useful tool called Wordle which enables you to create a customer Tag Word Cloud.
The clouds give greater prominence to words that appear more frequently in the source text. You can tweak your clouds with different fonts, layouts, and color schemes. The images you create with Wordle are unique and copyright free, so you cna use them wherever you want.
You can print them out, or save them to share or use in other media like videos or on Twitter – wherever you want to really!