I use webmasterworld a lot, but less than I used to. I now have to dig through lots of posts to get a sense of what the search engines are doing. Perhaps algorythms are not as obvious as they used to be.
Years ago more posts were on topic and actually helpful and it was easier to spot trends and developments. There is too much noise now, especially in the monthly google updates thread.
The design looks dated now and needs a facelift, grey is rather boring as a background colour. Don't worry about bandwidth and use a CDN, it will be fine!:)
There are some real gems in the smaller forums htaccess tips and tricks, programming tips etc... and I find I am dipping into these more often.