Answer - Advantages * Can control styles for multiple documents at once * Classes can be created for use on multiple HTML element types in many documents * Selector and grouping methods can be used to apply styles under complex contexts Disadvantages * An extra download is required to import style information for each document * The rendering of the document may be delayed until the external style sheet is loaded * Becomes slightly unwieldy for small quantities of style definitions Embedded Style Sheets Advantages * Classes can be created for use on multiple tag types in the document * Selector and grouping methods can be used to apply styles under complex contexts * No additional downloads necessary to receive style information Disadvantages * This method can not control styles for multiple documents at once Inline Styles Advantages * Useful for small quantities of style definitions * Can override other style specification methods at the local level so only exceptions need to be listed in conjunction with other style methods Disadvantages * Does not distance style information from content (a main goal of SGML/HTML) * Can not control styles for multiple documents at once * Author can not create or control classes of elements to control multiple element types within the document * Selector grouping methods can not be used to create complex element addressing scenarios