I've been spending my weekends in the Philly area with thoughts of moving down here in the somewhat near future. Since I really don't know the are to well, especially what to expect from the fisheries down here, I started doing a little research. That's how I stumbled upon Fly Fishing in Philadelphia. This was the first link I clicked on and I spent the next hour wandering about the site.
Honestly, the site isn't just a blog, but I linked to the blog part above. The postings are short and sweet, but are concise and really well written. Only about 50% are Philly specific so a lot of the content is universal.
the other sections of the site contain bits about fishing with the family, great spots in the area(which I've already fished some and have to agree) and a gear review section.
All in all a great litte piece of the internet.