From Back of the Cereal Box, another linguistically-minded blog, the following was taken from a caption to a picture in a post discussing Final Fantasy IV's terminology.

final fantasyiv’s epopts and cutie pie epopt leonora

I take issue with the lack of capitalization in the title as well as failure to correctly separate the name from the number.

Source: http://kidicarus222.blogspot.com/2009/07/game-nerds-vocabulary-beyond-1-up-and.html

Edit: The spacing issue in the original post has been corrected, capitalization remains unchanged.

Who's this Jacksonis guy?

Michael Jacksonis dead.

This is the introduction to a Kotaku post about Battlefield Heroes using Michael Jackson's image following his passing. Not only did they omit the space after his name, there are actually two links in that sentence. Go ahead. Look for them. You'll notice that the first link ends and the second begins where the space should be. This is a rather forgivable mistake, as the space likely got lost in a jumble of HTML, but this is what proofreading is for! Just give it a once-over before you post!

Source: http://kotaku.com/5304402/battlefield-heroes-cashing-in-on-michael-jackson

Update: This has now been corrected.

The all-important first impression

Personally, I often read only the headlines of a story in order to decide if it's worth my time. If I decide to go on to the article, the first sentence is of the next most importance. I found this error in the first sentence of a post on Kotaku:

If you wonder why Dead Spacecribs from other material, consider the fact that they were the sole new IP developed in competition with The Godfather, Lord of the Rings and The Simpsons.

Once again, the omission of a space between words, but here it's much higher profile, as this may be the only thing someone reads about this article.

Source: http://kotaku.com/5188714/the-simpsons-almost-killed-dead-space

First!!!

Wow, I wasn't expecting a first post so quickly. I'll be taking these examples from actual posts that I read, so there may be some time between my posts, depending on quality.

Anyway, here's the first post I found in need of some editing. I present to you the egregious error in the context of the containing sentence:
Honestly, the serieshas been headed down an action road for a long time, and series like Silent Hill have long since usurped whatever psychological oomph Resident Evil may have had.
Did you catch it? Go ahead, read it again. That's right. There in the third word - 'serieshas' - it's a simple little thing, really. Forgetting to put in a space between two words. But it's something that could be avoided by a simple little spell check. Even as I'm typing this, Firefox's built-in spell checker is lighting up on that one. What do editors do, if not run a quick F7 on every article they get?

Source: http://xbox.joystiq.com/2009/03/19/the-guide-gears-of-evil/

Update: This error has been corrected.