Looks like the Great Firewall or something like it is preventing you from completely loading www.skritter.com because it is hosted on Google App Engine, which is periodically blocked. Try instead our mirror:
This might also be caused by an internet filter, such as SafeEyes. If you have such a filter installed, try adding appspot.com to the list of allowed domains.
This list covers the vocabulary of books I and II (上 and 下) of this beginner level series. The series teaches 850 words and 120 patterns over 24 lessons. The course introduces only a limited set of characters, which can be studied separately here. The vocabulary sometimes varies slightly between the mainland and Taiwan versions of the course. In those cases both versions are included. This list was contributed by Kai Carver and was adapted from this list.
New Practical Chinese. Published in 2007 by the Taipei Language Institute (TLI).