Jack Melton‘s Civil War Artillery - This site is a must for anyone interested in Civil War projectiles and artillery.

American Digger Magazine - THE best relic magazine on the market today.

Treasure Net - Website to post and get info on metal detecting, mainly a coin shooter forum, but some relic hunters hangout there. Nice folks overthere.

American Relic Hunters - Very good site to post recent finds or identify that relic you just dug. Great folks.