I'm making tests on my landing page, and trying to get some traffic using google adwords. Everytime I make a change or add a new keyword, I have to wait for two or three days for google to aprove the keywords. I'm in Italy, don't know if this happens anywhere else. But is really upsetting. Note: they keywords are things like fortran, SaaS, python...

So, I'm looking for an adwords alternative that is fast. That is, if I change the keywords, I can start getting traffic as soon as possible without the long approval time.

PD: I've found many alternatives to adwords, but they don't say anything about how fast your adds and keywords are approved which is my major problem right now. That, and price.