I have link units on my site - just wondering how I know where they are linked to w/out clicking on them?
If i recall correctly, you can click on link-units, as long as you dont click on the any of the ads that the link brings up. For actual ads, there is (or was) an Adsense Preview tool that Google makes (made?) available.
right on. clicking once on link unit is OK as 2 clicks are required to get paid. first click isn;t actually clickin on the ad, it just generates the search result. regarding adsense preview tool, it is still available.