Here's a ranked listing of Fonts.com Web Fonts' most used Web fonts for July 2011:

Neue Helvetica® 87 Condensed Heavy

Administer BookItalic

Helvetica® Condensed Bold

Garamond 3 Regular

Garamond 3 Italic

Neue Helvetica® 45 Light

Neue Helvetica® 77 Condensed Bold

Univers® 57 Condensed

Sackers™ Gothic Heavy

Sackers™ Gothic Medium

Futura® Bold

Neue Helvetica® 57 Condensed

Avenir® 85 Heavy

Trade Gothic® Bold

Neue Helvetica® 35 Thin

Avenir® 65 Medium

Futura® Medium

Bauer Bodoni® Black Italic

Rockwell® Bold

ITC Legacy® Serif Bold Italic

Futura® Book

Avenir® 35 Light

Trade Gothic® Condensed Bold 20

Neue Helvetica® 47 Condensed Light

Neue Helvetica® 55 Roman

Rockwell® Regular

Avenir® 95 Black

Neue Helvetica® 37 Condensed Thin

Neue Helvetica® 67 Condensed Medium

Neue Helvetica® 75 Bold

Monotype Grotesque® Condensed

Futura® Bold Condensed

VAG Rounded™ Black

Helvetica® Condensed Bold, Ext

Futura® Medium Condensed

Trade Gothic® Roman

ITC Avant Garde Gothic® Book

Futura® Heavy

PMN Caecilia® 75 Bold

PMN Caecilia® 85 Heavy

PMN Caecilia® 76 Bold Italic

Neue Helvetica® 67 Condensed Medium, Ext

Avenir® 55 Roman, Ext

Neue Helvetica® 45 Light, Ext

Neue Helvetica® 63 Extended Medium

Neue Helvetica® 53 Extended, Ext

Neue Helvetica® 73 Extended Bold, Ext

Linotype Univers® 420 Condensed

Felbridge™ Regular

Linotype Univers® 620 Condensed Bold

Frutiger® 65 Bold

Frutiger® 55 Roman

Eurostile® Next Regular

Eurostile® Next Extended Regular

Eurostile® Next Extended Bold

Trade Gothic® Condensed Bold #20, Ext

Neue Helvetica® 65 Medium

Eurostile® Next Extended Semibold

Neue Helvetica® 75 Bold, Ext

Linotype Univers® 320 Condensed Light, Ext

Neue Helvetica® 55 Roman, Ext

Trade Gothic® Light

Eurostile® Next Semi Bold, Ext

Neue Helvetica® 77 Condensed Bold, Ext

Univers® 47 Condensed Light Oblique, Ext

Helvetica® Roman, Ext

ITC Avant Garde Gothic® Demi

Neue Helvetica® 65 Medium, Ext

Avenir® 45 Book

Trade Gothic® Extended Bold

VAG Rounded™ Bold

Helvetica® Bold, Ext

Trade Gothic® Next Regular

Neue Helvetica® 57 Condensed, Ext

Helvetica® Condensed, Ext

ITC Avant Garde Gothic® Medium

ITC Avant Garde Gothic® Bold

Helvetica® Light, Ext

Neo® Sans Regular, Ext

Avenir® 35 Light, Ext

Trade Gothic® Next Condensed Bold

Trade Gothic® Condensed 18

Helvetica® Condensed

Helvetica® Rounded Condensed Bold

Futura® Extra Bold

DIN Next™ Regular

ITC Lubalin Graph® Book

Neue Helvetica® 25 Ultra Light

Neue Frutiger® Regular

Helvetica® Narrow Bold, Ext

Univers® 67 Condensed Bold Oblique

Frutiger® 45 Light

Helvetica® Narrow Regular, Ext

Soho® Gothic Light

Frutiger® 45 Light, Ext

VAG Rounded™ Light

Futura® Light

Helvetica® Light

Avenir® 55 Roman

Neue Frutiger® Light