The collection of languages on YouTube is continuing to expand, with the addition of four new languages today. YouTube users can now surf the video site in Croatian, Filipino, Serbian and Slovak. That brings YouTube Worldwide to a total of 28 different languages, which is an increase of almost 50% from the beginning of the year. And international YouTubers can expect the site to launch even more languages by the year’s end.

According to the YouTube blog, the video site hopes to offer the YouTube experience in 40 different languages, which is double what they offered at the beginning of the year. The site started out with only English in 2005 and began adding new languages mid-2007. Ever since, the site has been on a roll, adding new languages for international users and we can expect a big push with adding even more languages from here on out.

Check out the timeline below, which shows all the languages that have been added to YouTube so far. As YouTube continues to add languages, making the site available for users no matter what part of the world they live in, their viewer base will only continue to grow. Is your native language accounted for? Can you think of any major languages that are missing?