How to use Site Aggregator WebPart in Sharepoint 2010, SharePoint Online and Office 365

A lot of questions and errors about Site Aggregator WebPart in Sharepoint site. I thought of writting a wutorial which btw I implemented on a SharePoint Online - Office 365 site.

What is Site Aggregator WebPart  - This webpart displays all the docuemnts created or modified by the users from various sites in a Site collection. You have to add the sites as Tabs to see the documents in thoes sites under that Tab.

Lets look at the steps.

1. Add the Webpart Site Aggregator to the SharePoint Site page.

2. Click on "Add a New Tab" to add an entry for new site.

3.  Once you click add new tab you would be presented with options to add URL and name of the Site from where you need to pull in the information.

Site Url - This can be any site siblling site or subsite of the current site. Only thing to keep in mind is that the site should be in same site colletcion.

4.  Next Create the Tab and you should see something like below.

If you get an Error something like "404 NOT FOUND " or you see your site below your tab Instead of documents then read my Post 404 NOT FOUND on Site Aggregator WebPart SharePoint