| 12:34 pm on Jan 25, 2013 (gmt 0)|
Google often rewrites the title tags. They are regularly testing different titles to display on the search result page. When Google rewrites the title it can result in more people clicking on your listing in the search results.
Also your original title tag looks like you might be doing some keyword stuffing and Google tends not to like it, plus it is not very helpful for users.
| 12:40 pm on Jan 25, 2013 (gmt 0)|
I agree with goodroi and I think Google is doing you a favor in this case.
Google must regularly find pages it thinks are worthwhile but they have the same title used on dozens of other sites and so they change the title a little. example: "round blue widgets", if these were a type of popular product there would be countless pages with that as title and Google won't list a full page of identical titles. By changing a few of the titles more of these pages might show up in serps.
| 1:57 pm on Jan 25, 2013 (gmt 0)|
Looked at my site. They sometimes grab anchor text from a linking page. This can vary between queries depending on how many pages from your site are being displayed. Often it seems to be to filter out identical titles but not exclusively
| 2:23 pm on Jan 25, 2013 (gmt 0)|
I found in the last 3 months or so Google has started using other titles in the search results. For the most part though I find Google still tends to use the page title. If it is not a page title then it usually is a link text I have used when linking internally somewhere on the site.
| 5:17 pm on Jan 31, 2013 (gmt 0)|
Not just titles of course, as I do occasionally I just looked at a search arguement from my site stats and found that the sample content was from DMOZ.
| 9:38 am on Feb 2, 2013 (gmt 0)|
Here's a discussion from roughly August, 2012, which goes into the particulars of how Google treats various types of titles, including those which are too long (too many keywords)....
Google is now rewriting all my page titles