sorry it was weeks ago, And by spending 5 minutes googling i couldn't find it.
However I can summarise the point of that article. It basically says since links stand out, first thing you read from paragraph are links. If the link is on the beginning of the article, you naturally read the link and continue reading it. If it's on the end of the article, you'll first read the link and after it go back to begging of reading paragraph. If it's in the middle, you'll wonder what the paragraph is about, so your eyes will naturally read the first few words of paragraph and after it a couple of end words of paragraph. Before continuing to read article.
The author that wrote that article was obviously an expert in UI/UX and has spent a great deal thinking/doing articles.
An example that you've mentioned, Wikipedia, it doesn't have such huge contrast between link and text, and I'm expecting it to be full of links.I suppose thats the reason why but I don't do the described behaviour on it. However I often find myself doing the described behaviour when reading blogs, making me ignore/stop reading the blogs that do a lot of linking.
