One of the ways any website can cause problems is that the text may not be comfortably viewed by a visitor to the site. If the CBB site presents this problem for you, you're in luck! All browsers have the ability to change font sizes on the fly, so that every user can adjust it the way they want it (with some caveats).
Adjustments to font size are typically available via the "View" menu, where there's a sub-menu of "Text Size" which can be set either in percentage increments or to categories such as "Largest" "Larger" "Medium" "Smaller" or "Smallest." The image below is from Internet Explorer 6 on Windows XP.

On the Mac, pressing the Command key (aka the "Apple" key) and either "+" or "-" will enlarge or shrink the font size. This is a somewhat easier alternative to using the "View" menu, which is also available. The image below is from Internet Explorer 5.2 on Mac OS X.

Font size adjustment will work on all text that is "live," that is, in text form rather than in the form of a graphic. For example, the section titles in the left navigation bar are graphics (e.g., "Who We Are" "Events" "Education for All Ages"), as well as page titles. This type of text will not change. All underlined links though, are "live" text, and will enlarge via browser control. The vast majority of text on the site is able to be changed in this fashion. Give it a try, and see what size you like!