try bidvertiser and infolinks, they will approve within half an hour.
but adsense is the king, it cannot be compared with other ad networks.

if you want an adsense account, check this page: flixya.com/lp/ and sign up. your google adsense account will be ready in a day.

Clicksor can be a very good but i always found the worst one was bidvertiser the revenue is terrible.

Here are a few more to check out:
adbrite
admedia
chitika

This question comes up very regularly. The plain reality is there isn't anything that compares favorably with Adsense.

bfas

Surprisingly my friend applied yesterday and got accepted within the first day. His site is high quality though and over 1 year old, so that's probably why. I was still very surpised it happened so fast.

I applied to adbrite for two domains, one 2 weeks old and the other 1 week old and I had active ads within just a few hours. That said, I'm not sure that I'm crazy about the variety of ads which seem to mostly be for acne medicine, viagra and Evony.

Chitika changed their approval process, so I wouldn't recommend them anymore. They now approve every site manually, believe it or not.

But as others said, there is no other network that comes even close to adsense.

You can open up a blog at blogger.com
I heard if you apply for adsense through it, you get it within hours.

Google owns Blogger.

I think adbrite is the good alternative for adsense, But IMO adsense is the best. .

[DELETED]

check this out dude.

The Biggest List Of Google Adsense Alternatives On The Net

Simon