A method and system are provided for searching across independent applications. A first seedlist (202) is provided from a first application (201), the first seedlist (202) including a list of data items (211) for crawling by a search engine (220). The data items (211) are owned by the first application (201). A second seedlist (206) is also provided from a second independent application (205), the second seedlist (206) including annotation data (214) for crawling by a search engine (220). The annotation data (214) relates to the data items (211) of the first application (201). A search index (204) provides searchable data from the two or more applications (201, 205), the searchable data relating to the same set of data items (211).