Such acronyms exist primarily for practical reasons — to reduce the time and effort required to communicate through these mediums apart from technological limitations. Examples of common acronyms include "lol" (for laughing out loud; a general expression of laughter), "omg" (oh my god) and "gtg" (got to go). The educational perspective has been considerably established in the research on the Internet's impact on language education. It is an important and crucial aspect as it affects and involves the education of current and future student generations in the appropriate and timely use of informal language that arises from Internet usage. There are concerns for the growing infiltration of informal language use and incorrect word use into academic or formal situations, such as the usage of casual words like "guy" or the choice of the word "preclude" in place of "precede" in academic papers by students. There are also issues with spellings and grammar occurring at a higher frequency among students' academic works as noted by educators, with the use of abbreviations such as "u" for "you" and "2" for "to" being the most common. Linguists and professors like Eleanor Johnson suspect that widespread mistakes in writing are strongly connected to Internet usage, where educators have similarly reported new kinds of spelling and grammar mistakes in student works. There is, however, no scientific evidence to confirm the proposed connection. Naomi S. Baron (2008) argues in "Always On" that student writings suffer little impact from the use of Internet-mediated communication (IMC) such as internet chat, SMS text messaging and e-mail. A study in 2009 published by the British Journal of Developmental Psychology found that students who regularly texted (sent messages via SMS using a mobile phone) displayed a wider range of vocabulary and this may lead to a positive impact on their reading development. Though the use of the Internet resulted in stylistics that are not deemed appropriate in academic and formal language use, Internet use may not hinder language education but instead aid it. The Internet has proven in different ways that it can provide potential benefits in enhancing language learning, especially in second or foreign language learning. Language education through the Internet in relation to Internet linguistics is, most significantly, applied through the communication aspect (use of e-mails, discussion forums, chat messengers, blogs, etc.). IMC allows for greater interaction between language learners and native speakers of the language, providing for greater error corrections and better learning opportunities of standard language, in the process allowing the picking up of specific skills such as negotiation and persuasion.