Your New 3D ContentCentral
3D ContentCentral (3DCC) has recently been overhauled and drastically expanded. It is now organized into these tabs: Home, Parts, Features, Blocks, and Macros. Each tab has a Top Rated area and a Recently Added area. For parts, there is a section where you can make requests for new parts. These requests can be filled by other members of the 3DCC. There is even a contest for who can fulfill the most requests; it has some cool prizes each month.
Parts is divided similar to how it was before, but now it is visually organized for easier identification of each area. Featured categories, suppliers and user libraries are still available.
The Features tab is divided in many useful categories, with weldments heavily represented. There is plenty of opportunity for us to populate these areas. That’s the nice way as saying that Feature categories are currently pretty bare of content.
Blocks is another area that boosts the opportunity for users to populate its categories. Some categories have a good start, while others are very bare. Surprising to me is the fact that electrical componentry is currently highly represented in this area.
Macros is being populated fairly quickly by users. There is already a decent selection of macros to choose from in various categories, such as Add-ins, Assemblies, Drawings, etc.
3DCC now give users the ability to both rate contributions and to comment on them. This will be useful to determine if a download is worth your time.
My only complaint about 3DCC at this time is that it takes too many steps to get to these areas from within SolidWorks (at least in SW 2007). Click on Design Library, then 3D ContentCentral, then User Library, then the Home icon.
Have fun with the new layout and content. I hope to see many new additions soon! 
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My main beef with content central has always been how the parts are classified. Its often simpler to model the parts yourself than hunt for them on content central. Thats not really solidworks fault its just that classification is mostly voluntarily done by those who contribute models.
One way to fix that would be to allow the searching of many descriptive fields instead of just one title for the uploaded model.
Best Regards
Adrian D.
http://www.aaadrafting.com