OP lists campaigns for newbies, aswell as campaigns for higher members.
Some require the senior member rank to join, others have different rank requirements.
Just check OP, I think it's a pretty clean and clear overview, you'll find your way around.

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You get higher ranks via activity. Just have a look over here.
An easy explanation on how activity works can be found here.

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Further questions should probably be moved elsewhere, since this is getting a little OT.

Is there an open campaign for a Newbie? 777Coin did not accept me, I do not know why.
If I am JR Member I can try YoBit but that takes a month to reach.

removed -> http://pastebin.com/7XnyVAFk (based on Lutpins last pastebin + some corrections)

messed up the order of Rollin.io and SpectroCoin. I will recheck all campaigns and post an update afterwards.

fixed -> http://pastebin.com/5Vb022Jy

Secondstrade is taking new members again

not shorena, but here you go

-> http://pastebin.com/W5xUtfeq

Also removed the obsolete quote around the whole post.

er.. the closing period of secondstrade already over, they only close about 1 week
they close it because of member selection and global mod warn, i think they don't want to close the campaign again onward
so if possible, move secondstrade into active

i only think they close if global mod warn secondstrade again, and secondstrade now checking the quality post for the new participants
so i think the chance of closing is smaller than before

Just look at the table and pick a signature campaign that is open and pays the most (as of right now YoBit). There is no "best" signature campaign and I'm getting tired of these questions... I mean, I provide a table with all the data you could possible need.