We have now engaged an online marketing company to manage the business's online local marketing. But they are asking us to share our Google Account login details so they can manage the business's "Google My Business" and related Google+ pages.
I have no issue letting them into any online marketing related tools such as the Google My Business account and related Google+ pages (and I presume they may also want access to our Google Analytics), but the same Google account login details would also give them access to my other Google business apps such as my gmail and google drive which I am very uncomfortable with.
How can I give them access to the google marketing tools, which were set up under my name, but not the more sensitive apps? What is the proper security practice to allow third parties to access the marketing tools?