Blogs on Dxing:
Found very few that I wanted to follow for very long. The better ones had a good mix of news, DX history, articles of recent activations (even the minor ones), and more technical articles on antennas, Internet DX-ing aids, etc...
Internet Forums:
Ok to scan, kind of like the funny pages in newspapers of yesteryear, but unfortunately pretty much taken over by a small cadre of folks that don't just respond to posts, they editorialize and evangelize their personal thoughts as though they have all the answers. Every once in a while, a small nugget of useful information may pop out, but not very often.
DX Clubs:
Okay for information and networking for the novices and those just starting out, but overall they are dying as well. The best clubs/groups are usually the tightknit groups that are heavy on the social aspect(s) of friendship, helping each other with antennas, meeting for dinners, etc... In my experience, the best clubs/groups are usually very informal and attempt to escape the trappings of the more formal (Robert's Rules of Order types) club paradigm.
The club experience of attending to hear:
-old minutes
-treasurers reports
-old business
-new business
-and then having the "politics" of the large club atmosphere are not what most want out of clubs any longer