I think the easiest and safest way is to put up claim warps like [name].claim. We have support for this and the claim will show up on the map as "Claimed by [name]".
This way it's easy to see where there are claims as they show up on the map. With the different claim threads it's really easy to miss one, especially if you don't read the forums that much, which is why Obsi posted this list. If everyone used the claim markers we wouldn't even need a list.
EVE Online characters:
Daedalus II ex-CEO TOGOA, Daedalus III slave of Daedalus II
Little Molok Asura Engineer
"Each day I don't get an attempt on my life by a robot from the future I see as a personal failure"