Here's a few more links (some discussed elsewhere on the forums).
http://www.goo.ne.jp - super portal, with link to J-J online dictionary
http://www.yahoo.co.jp - Japanese version of yahoo with a popular online dictionary
http://language.tiu.ac.jp/index_e.html - Paste text in the box, and it'll parse the text with definitions (including J-J!) in the side bar.
http://www.iknow.co.jp - useful sight for learning vocabulary. Provides sentences, photos and professional native readings of the words and sentences. Game style SRS function.
http://www.lang-8.com - site for posting and correction of journals. People of both languages help each out with this.
http://www.goo.ne.jp - super portal, with link to J-J online dictionary
http://www.yahoo.co.jp - Japanese version of yahoo with a popular online dictionary
http://language.tiu.ac.jp/index_e.html - Paste text in the box, and it'll parse the text with definitions (including J-J!) in the side bar.
http://www.iknow.co.jp - useful sight for learning vocabulary. Provides sentences, photos and professional native readings of the words and sentences. Game style SRS function.
http://www.lang-8.com - site for posting and correction of journals. People of both languages help each out with this.