在ASP.Net MVC中，是否使用静态方法在视图上查找缓存对象的不良做法？

I am creating a portal where many sites will run of the same MVC application. I have a list of Sites stored in the HttpRuntime.Cache. Is it wrong to access the cache via a static method? Should I instead be passing this on view data?I am creating a portal where many sites will ru