The "blob" is the movie that they play while they are working on a calculation because everything must be animated today.

When I try your query on several different browsers, including Chrome Version 35.0.1916.153 running on Windows 7 64, I am not able to see the blob that will not finish.

Perhaps you could submit all the details, os version, chrome version, query, etc to the WolframAlpha support people and see if they can reproduce this, track the cause down and fix it.

If you could give an example of something you are searching for, and copy the URL from WolframAlpha after it displays the result and perhaps even a screen capture showing what it looks like, all the html for the contents of the page probably not needed, then someone could try to reproduce your problem and perhaps find an answer for you.