IEFavorites
A module that allows you to add/remove IE favorites using PowerShell
Get-IEFavorite
Name : The WSUS Support Team Blog - Site Home - TechNet Blogs.url
IsFolder : False
IsLink : True
Url : http://blogs.technet.com/b/sus/
Path : C:\Users\PROXB\Favorites\Links\The WSUS Support Team Blog - Site Home - TechNet Blogs.url
Add-IEFavorite -Name Bing -Url http://Bing.com
Get-IEFavorite -Name Google | Set-IEFavorite -NewName Bing -NewUrl http://Bing.com