Well, sorry I took so long to post this. And I am glad another poster is also putting up material.
As I said at the end of my last post, I took some time to do the running for Law runes, on world 66. This was not that hard, though crowded. I couldn't run as many runes as other's since I carried teleport runes with me. Well, I carried water and air runes. The law, I was going to get!
A few tips for others out there doing this easy, and lucrative activity. Stand to the sides of the lane. Standing in the middle just makes it seem like you are doing the crafting. Don't, I repeat do not, say "Law me!", no matter how polite about it you are. That only irritates other players, and I never saw it work. I suggest right-clicking on the stack of crafters, and picking one a bit lower down. If they have not responded in about 15 seconds, try again. Expect to have to do this a lot.
Do not just keep clicking on the same one, unless it is a friend of yours. You are unlikely to get results. The crafter's are in Zamorak Red, so I suggest wearing something that is not red. However, honestly, it is so crowded it probably doesn't matter.
In about 6 hours of play-time [not realtime, this was over several days], I managed to go from 2 law runes to over 300. I then switched worlds, to move to another activity, and a guy bought 50 of them for 50K!
Law running is held on world 66, and sometimes on 99, depending on how crowded 66 is. Good luck if you try this!