Be.Interactive talkes about every interactive idea that roams the virtual world. I find my information in other blogs, forums, rss feeds and every other existing media.
A great document from MarketingSherpa where you can find real life tips and tricks for different areas like email campaigns, corporate blogging, podcasts, ...
You can download it on : http://wisdom.marketingsherpa.com
Found the reference on: http://blog.luon.com/