Hello.
As to respond to your message here http://www.nopcommerce.com/p/1299/seo-internal-links-for-category-pages.aspx
This is my list of plugins
SevenSpikes.Core
SevenSpikes.Nop.Plugins.AjaxCart
SevenSpikes.Nop.AjaxFilters
SevenSpikes.Nop.Plugins.AnywhereSliders
SevenSpikes.Nop.Plugins.CloudZoom
SevenSpikes.Nop.Plugins.CustomerReminders
SevenSpikes.Nop.Plugins.InstantSearch
SevenSpikes.Nop.Plugins.JCarousel
SevenSpikes.Nop.Plugins.MegaMenu
SevenSpikes.Nop.Plugins.ProductRibbons
SevenSpikes.Nop.Plugins.NopQuickTabs
SevenSpikes.Nop.Plugins.QuickView
SevenSpikes.Nop.Plugins.SmartSEO
SevenSpikes.Theme.Lighthouse
ExternalAuth.Facebook
ExternalAuth.OpenId
Widgets.NivoSlider
SevenSpikes.Nop.Plugins.AjaxFilters
Widgets.GoogleAnalytics
Misc.FacebookShop
Payments.PaySera
Payments.PayPalStandard
Shipping.ByZoneAndWeight
PromotionFeed.Froogle
CurrencyExchange.MoneyConverter
Widgets.ZopimChat
FoxNetSoft.Plugin.Misc.InternalLinks