I like that it allows me to see what ads are being shown for my keywords as well how many impressions they have gotten so far in order to determine whether or not this ad network actually works! The only thing i dislike about these services (and there may be others) would probably just come down more towards their website implementation/interface - which seems pretty awful right now- but at least we can still use our own websites without having everything hosted by some third party server somewhere else where all your data gets sent when you log into one place instead.- if someone wants something done correctly then do whatever needs doing yourself otherwise don't get involved unless its really worth working throught issues such has poor interface design etc..I am using AJUG because other sites were showing too much irrelevant content from Google's search results page rather than actual relevant pages within those searches terms / keyword phrases; however since joining.