Marcy Jackson is a bona fide resident of American Samoa. Her business, which she conducts from an office in American Samoa, is developing and selling specialized computer software. A software purchaser will frequently pay Marcy an additional amount to install the software on the purchaser's operating system and to ensure that the software is functioning properly. Marcy installs the software at the purchaser's place of business, which may be in American Samoa, in the United States, or in another country. The income from selling the software is effectively connected with the conduct of Marcy's business in American Samoa, even though the product's destination may be outside the possession. However, the compensation she receives for installing the software (personal services) outside of American Samoa is not effectively connected with the conduct of her business in the possession—the income is sourced where she performs the services.