Under what circumstance is "+1" in the ad text acceptable?

The diagnose keywords feature will show a status of:

If you have an exact match keyword being bid below the estimated first page minimum bid, can it show adverts on the first page?

What could cause a conversion with no click associated with it?

What are enhanced online campaigns?

What is the limit on number of Adgroups in an Adwords Campaign?

Johann has 10 Exact match Keywords in a single Ad Group that he feels are very relevant to his business, but he's getting very few clicks and not using up his daily budget. What is one option for increasing Johann's clicks?

What is one important reason for tracking conversions in AdWords?

The hierarchy of a typical AdWords Account is as follows:

A new client approaches you to advertise the 100 products he has in his store, but he has a budget of only $50 a day. What would be a good way to approach this Account?

What is one advantage of using a Google Call Forwarding number in call extensions?