I have been building a prototype plugin just this last week that will allow blog post/page searches within the forum search. If I get that off the ground then the natural follow up will be to create the opposite – which will be a search of both blog and forum within the blog pages – maybe a widget. Can’t speak for your wiki of course, tnat depends on how it allows searches to be handled.

Thanks. I think a plugin would be a perfect way to handle this. I was testing bbpress and someone wrote a plugin for that product that replaced the standard search so that when you performed a search, it would look through all blogs, pages, and forums. I didn’t have much data in the forums, so I can’t comment on performance, but it worked great in testing (and it worked with the wiki plugin as well). 

I’ll be interested to see what you come up with…

bbPress – the newer plugin version – stores its posts in the same database table as blog posts and pages. Personally I think this is a very bad idea but that is what it does. But it does make combined searching easier in all fairness. At least technically. However – it is only possible – unless building a separate index file – to use only basic search techniques on the Wp post table.

We will get there.

btw… there is a plugin for this now…