Google adsense is better because I heard YPN is not paying publishers for the clicks outside the US.

Depends on the traffic level however I think flat charges will be convenient for both you and your advertisers.

I think you should target Broad Match. :)

Make some offer/discount coupon to your visitors and optimize your landing page effectively which may help you in good conversion.

Parking does not give you good earning unless you've large number of domains. I think it is better if you create pages and set up adsense.

You can also check with sedo.com

In online marketing nothing beats organic traffic..

I think the trademark name get more leverage through Adword, it help in increasing the brand’s exposure.

Google adwords has geo-location option from which you can target specific city/region/country. For detail info you can take AdWords Help; http://adwords.google.com/support/bin/topic.py?hl=en&topic=21

Why you want to put that ad?

Alternatively you can check with adbrite, hopefully they can accept such content.

Most of people fail in PPC marketing because they usually bid for highly competitive keywords and fail to optimize the landing page effectively. I think you can get good number of clicks if you bid...

Adword becoming just more competitive so you may find rate differences from others, however as far as content matching is concerned Google shows more natural results than Yahoo! Search Marketing, ...

You can use Google analytics to track your PPC campaign.