This study expanded the definition of reading practices to include both print- and Internet-based reading, and examined the relationship of reading profiles to Taiwanese college students' performance on various practices. The results showed that more time was spent on Internet-than print-based extracurricular reading, and that the three most-popular reading practices were: visiting social networking sites, reading online news, and browsing electronic Bulletin Board Systems. When we compared four reading profiles, a consistent pattern emerged: More diversified the readers self-estimated faster reading speed, reading more complex materials, better reading comprehension, and higher overall language proficiencies. Also, more diversified readers self-reported engaging in a wider variety of conversation topics with other people.