I am very impressed and very grateful for this feature. I have been researching this topic for a while now, and finally I can say that your site is quickly becoming the one-stop shop for this aspect of learning chinese. Namely, word repetition, stroke order and tones/pronunciation.
Clearly this is a great complement to formal chinese learning. Keep up the good work!

Thanks very much! I've been working on this feature for a while now so I'm eager to hear what people think and anything you guys have in mind for further improvement.

Just wait until the pinyin and definition practice! And there are still so many other things to do on our list that will make this even better, so enjoy the new features as they come!

I know I'm being very dense.
How do I get my Custom List started ?

Each word I added just gets added into the mix with my textbook words, my only indication that it was my own add is that there is no textbook title/lesson attached to it. Is there a way to pull out the words I have added individually to create a list?

To start a list, go to the vocabulary lists page

http://www.skritter.com/vocabulary/lists

then from there to the custom lists page

http://www.skritter.com/vocabulary/customlists

and click either the 'Your Lists' or 'Drafts' tab, then click the 'Make a List' button, which will take you to

http://www.skritter.com/vocabulary/listeditor

where you can add words with the same widget you use to add words to your queue.

Right now there's no way to get an ordered list of the words you added to your queue, unfortunately. The way the system works, there's no data left behind about whether an item was added through the queue or when exactly it was put in the queue in the first place.

I'm working on a bunch more surface and underlying changes to the way lists work, so I'll work into that a change in the way the queue system works to keep that data and allow you to browse words previously added from the queue. I'll also look into ways to allow you to view words previously added to the queue whose queue related data has already been deleted.