I have a few links that may be interesting or useful regarding the Wonderful Japanese Language Learning Tool! blog.
The first is: http://www.alc.co.jp, a site that will take the English word or phrase you enter, and give you a wide range of possibilities in Japanese, along with sample sentences. It handles English phrases and expressions better than many other online dictionaries I’ve tried.
The other, http://www.rikai.com/perl/Home.pl, is similar to PopJisyo in many respects, with some other interesting features, especially for those with FireFox web-browsing.