I have set up two farms (1 in 2010 and 1 in 2013). I have not done too much with either environment yet but a question came up and I don't know if Sharepoint can even do this.
In this scenario, we have an "intranet" site that comes up when a user first logs in. On this first page are links to the other departments that are sub-sites of this main site (i.e. HR, ITS, etc.). Also on this first page is a document library that has documents that are stored in the other sub-sites but would be useful to show on the first page. So instead of going to the HR department's sub-site for a time sheet, this document would be here as well. The document lives in the HR site but there is a reference to it here as well as other documents from other sites.
So with this scenario, is there a web part that can be used to achieve this? It could be done with multiple web parts. I do know a little about Document Libraries but I don't know of any way to do a shared document library that matches my scenario. We are looking at doing an employee portal and would like to use Sharepoint but one of the requirements is something similar to what I described. I'm just trying to get some indication whether I should start looking deeper at certain web parts (we like to stay as close to vanilla as possible) or if I need to work on getting some custom web parts going.