Should I create a lot of ad groups in my case?

Adwords noobie here. Stupid question.My site is a ford forum it contains a lot of sub forums e.g. ford aspire forum,ford fiesta forum,ford escape forum and so .on..........

Can I throw all the keywords on my index page or should I create one ad group for each of my sub forums?

I will only target content network and not search network.

Which will get me cheaper clicks and better results, throw all the keywords on my index page or create a bunch of ad groups for each of my sub forums.

Thx

dizen said:

Can I throw all the keywords on my index page or should I create one ad group for each of my sub forums?

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If you're trying to drive traffic for a particular make+model, e.g. Ford XYZ, then each of these should be in its own separate ad group containing relevant keywords. So, keyword research is important.

dizen said:

Which will get me cheaper clicks and better results, throw all the keywords on my index page or create a bunch of ad groups for each of my sub forums.

Click to expand...

The second option, but only if you have the correct keywords/ad groups, a relevant ad/copy and a relevant landing page/copy. Once you have done initial testing, then optimizing the campaign will bring cheaper clicks if done correctly.