I've seen three sites in my corner of the net improve their rankings recently so I did some digging to see if they'd made changes or increased backlinks etc, the usual.
The only thing in common that I've found so far, that was a changed from how these sites looked 3 months ago, was that none of them display titles in text format on either the home page or on any category page any longer. They used to as most sites do.
The sites LOOK the exact same but the titles are now actually an image on the index page and on category pages. The image that looks like text until you try to highlight it is the link to individual articles. Also gone are the typical H2 tag surrounding where actual textual titles used to be.
Individual articles still have the title in text format within an H-tag, the switch to text-in-image is, again, only on the index page and on category pages.
Why it works? While I can't know for sure it appears to increase the value of these titles on article pages as well as reducing the amount of duplicate text everywhere else.
Is this a tactic worth trying or should I keep digging for other changes?