Just my inane ramblings...Heed them well or pay them no mind, at your leisure.
DIY Fence and Wall Repair
A good article from Mother Earth News containing an excerpt from Landscaping (Skills Institute Press, 2011) with a link to buy the book. The article gives good insight on many common rence and wall repairs. A good read. The book (not an affiliate) looks like it might be worth it too. Enjoy!