Sometimes you think you are the only one out there doing stuff - In my case collecting resources for teachers... Then you come across someone who has been doing it longer than you... far longer.
Here is a new site/blog to check out. Based in Canada The teacher List is a great multinational resource for teachers from k-12.
Here is a coupple of the links on his site
School WAX TV - Mini lessons both live action or animated
DOC COP - An anti plagerism service based in Melbourne, with a couple of free option to upload students work and find out if it was all or partly ripped off the net or a fellow student.
Teachers.tv - Documentaries, teaching ideas, forums and discussions - UK based this is a gold mine for teachers to expand their horizons.
Best online Docos - Name says it all really -
Shodor Interactivate - A huge amount of maths based activities from primary to secondary.
Go have a look and see what you find useful.