Exposing archive view I'm using an archive view which is in Views by default but just needs to be activated. It works great and is displaying the way I want it to, but I was wondering if there was an easy way for me to expose the view so I can allow users to filter content by month or within a month range (eg. from Janauary 2011 to May 2011)...?
You need a Date filter. If you have the Date module enabled, you can activate the Date Popup widget to allow users to easily select dates. (The popup may only work on the Page display, e.g. http://yoursite.com/archive)

Choose the 'Date: Date (node)' filter.  Set the Operator to 'Is Between' and set the value type to 'An offset from the current time'. Using your example, you can use '-4 months' for the Min value and 'now' for the Max value.

Finally, click 'Expose' to show the date filter to your users.