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Instead of showing the meta description or some text taken from the page in 2 lines, it's listing very short form of meta description on the first line, then taking a combination of the name, price and review rating of the top 3 items listed on page and list them in bullet points.
cd tower : Target Search Results
www.target.com/s/cd-tower - Cached
Items 1 - 60 of 140 – Shop for cd-tower at Target. Choose from Atlantic Nestable ...
• Atlantic Nestable 100 CD Tower, Gunmetal – Media Type Compatibility: CD
• Black Sereni-T CD/DVD Storage Towers-2pk – Features: Fixed Shelves
• Four-Sided Spinning Tower - Oak/Black – Holds up to 832 CDs, 340 DVDs, 200 ...
Snippetsâ€”the few lines of text that appear under every search resultâ€”are designed to give you a sense for whatâ€™s on the page and why itâ€™s relevant to your query. This week we started rolling out snippet improvements for pages that contain lists; results for these pages will now reflect the structure of the page, rather than just showing two lines of text.
If a search result consists mostly of a structured list, like a table or series of bullets, weâ€™ll show a list of three relevant rows or items underneath the result in a bulleted format. The snippet will also show an approximate count of the total number of rows or items on the page (for example, â€ś30+ itemsâ€ť in the screenshot). [4.bp.blogspot.com]
This change to snippets will be rolling out globally over the next few days. Over time weâ€™ll keep making more snippet improvements to better reflect the content of our search results, making it easier for you to find the most relevant results.
Why wouldn't Google use schema.org markup for this instead of trying to parse tables and lists?
There are quite a few HTML elements and attributes that Google can use that are not classified as Microdata. Google have shown us in the past that it is fully capable of taking well structured semantic markup and using it to improve the user experience. This is a good case study for using structured lists e.g. <ul>, <ol> and <dl> and semantically structured <table>s.
Am I missing something?