I have all four issues of Fight On! in print.
In intend to get caught up on Knockspell very soon.
People who like these should make sure they go download the free fanzines at Dragonsfoot. Richard Tongue's OD&Dities was one of the great early rallying points for the fan-originated part of the "old school renaissance." Evey one of its issues are archived in the Classic D&D resources section at DF.
And of course, DF's own Footprints magazine is now up to about 15 issues and is of very high quality.