Content insertion elements to combine search results, for example, enable a user to search the internet and obtain relevant intranet search results integrated into the results page from the internet source. In embodiments enterprise search results, desktop search results, or paid for search results are combined with internet search results. For example, a public internet search engine maintains mapping data indicating which users or user computers are authorized to access content from a second source. In an embodiment, an internet search engine receives a query from a web browser and returns results together with a content insertion element only if mapping data requirements are met. A content insertion element may hold an address of a second content source, a query and optional parameters. A web browser is able to render a web page displaying results from more than one content source using the content insertion element.