Dynamic insertion of content items into resources

A system configured for dynamically inserting content into publisher resources, the system comprising:

• one or more processors configured by machine-readable instructions to:
• receive, by one or more processors, a request for a publisher resource including a device identifier of a device on which the publisher resource is to be presented;
• identify, by one or more processors, a plurality of content blocks according to which the publisher resource is to be formatted, each of the plurality of content blocks including a portion of the publisher resource;
• format the publisher resource into one or more pages with boundaries defined by the plurality of content blocks;
• determine a display capability of the display on which the content is to be presented;
• select, by the one or more processors, a plurality of content items for presentation along with respective content blocks defining the boundaries of the one or more pages of the publisher resource and dynamically determine placement of the content items in the publisher resource based on the display capability of the device on which the publisher resource is to be presented;
• wherein a predetermined number of content items are displayed on a first portion of the publisher resource defined by a first boundary of a first content block of the plurality of content blocks, and a predetermined number of other content items are displayed on a second portion of the publisher resource defined by a second boundary of a second content block of the plurality of content blocks.

A non-transient computer-readable storage medium having instructions embodied thereon, the instructions executable by one or more processors to perform a method, the method comprising:

• receiving a request for a publisher resource including a device identifier of a device on which the publisher resource is to be presented;
• identifying a plurality of content blocks according to which the publisher resource is to be formatted, each of the plurality of content blocks including a portion of the publisher resource;
• formatting the publisher resource into one or more pages with boundaries defined by the plurality of content blocks;
• determining a display capability of the display on which the content is to be presented;
• selecting a plurality of content items for presentation along with respective content blocks defining the boundaries of the one or more pages of the publisher resource,
• including dynamically determining placement of the content items in the publisher resource based on the display capability of the device on which the publisher resource is to be presented;
• wherein a predetermined number of content items are displayed on a first portion of the publisher resource defined by a first boundary of a first content block of the plurality of content blocks, and a predetermined number of other content items are displayed on a second portion of the publisher resource defined by a second boundary of a second content block of the plurality of content blocks.