Twitter changed its primary web font for user profiles on Friday, moving to a sleeker and narrower look. The new font is Gotham Narrow SSm. Gotham tends to be a popular font across the Internet and was used in Barack Obama's campaign. The new logo for One World Trade Center also uses a Gotham variant. [seealso slug="free-font-creation-tools"] The font is the product of Hoefler & Co. (neè Hoefler &