1. A method comprising: receiving, by one or more server devices, from a client device, and without further interaction by a user of the client device, a request for one or more action links that are to be inserted into a document previously requested and received by the client device; identifying, by the one or more server devices, the one or more action links based on information that identifies one or more action services previously defined by the user and that is previously stored by the one or more server devices, the one or more action services including at least one of one or more email services or one or more social networking services, and each of the one or more action links providing an opportunity for the user associated with the client device to share the document by using one of the one or more action services; generating, by the one or more server devices, content that includes the one or more action links; and providing, by the one or more server devices and to the client device, the content for presentation within the document.
1. A method comprising: receiving, by one or more server devices, from a client device, and without further interaction by a user of the client device, a request for one or more action links that are to be inserted into a document previously requested and received by the client device; identifying, by the one or more server devices, the one or more action links based on information that identifies one or more action services previously defined by the user and that is previously stored by the one or more server devices, the one or more action services including at least one of one or more email services or one or more social networking services, and each of the one or more action links providing an opportunity for the user associated with the client device to share the document by using one of the one or more action services; generating, by the one or more server devices, content that includes the one or more action links; and providing, by the one or more server devices and to the client device, the content for presentation within the document. 6. The method of claim 1 , where the content includes code for a scripting language used to present the content at the client device.