To restrict the weblogs included in a search on your site, you can use the IncludeBlogs and ExcludeBlogs settings. IncludeBlogs lists the weblogs that will be included in the search, and ExcludeBlogs lists weblogs that will be excluded from the search. Do not try to use both--IncludeBlogs will override ExcludeBlogs. The default is to search all weblogs. Separate weblog IDs with commas.
Default value: none
ExcludeBlogs 1,3,4 IncludeBlogs 2