I remember the "untrusted source"... The elusive Walleye Wacker. What a jerk.
If you want a wealth of knowledge, including archived fishing reports from years past, check this out.
http://www.wbsa.us/index.php?page=denied
There was a guy named Dean that shared information before sharing information was cool. Tons of interesting things on these pages and links. Most of the things on this page came from Deans personal blog before he quit and I believe moved to Texas. There are maps, tricks, tips, techniques, reports, charts, and much more.