wordreference.com and leo.org are excellent online dictionaries.
watch German news (logo!)
listen to podcasts and read along
You can listen and read about German history (20th century)
Listen to German fairy tales in a simplified version.
News, slowly spoken (Deutsche Welle)
News, simplified (text and audio) with vocabulary
Short videos about German culture
Germania, neue Perspektiven auf unser Land (short video clips about German immigrants)
