my favorite fonts seem to fall into a couple categories. i understand that serifs are easier to read in blocks of texts, but overall i prefer sans serifs, either very light or very bold. i like well-placed, creative, and non-gratuitous flourishes. here are some examples of beautiful fonts:
this is avenir. i like using this one for simple posters. also my resume uses this font.
this is brandon. i don't love the weathering on this one, but i do like how bold and simple it is.
this is carolyna pro. i love the interplay between line widths, and also it's just really pretty to look at:
lastly, this is true north. a really sweet and clean cursive that's not too overwrought:
i'm going to skip 1001freefonts.com because it may have some good things but the user interface is just unworkable.
i do like these sites though...
Font Squirrel because if i'm turning to a website for help with aesthetics, the website itself better be pretty - which font squirrel is.
da font is not as pretty as font squirrel, but they do have a lot of fonts that i like.
lastly, this blog has compiled a list of 100 great fonts for the design-inclined.
i'm sure there are a lot of other good font sites out there, so if you have a favorite, please let me know! in the meantime, go forth and type beautifully...