Comment by achow

The author's list of the prediction is at the end (most likely at the top to least likely at bottom). Verified the predictions.

1. Schemer - Closed Jan 2014

2. Boutiques - Closed Oct 2011

3. Magnifier

4. Hotpot - Closed 2011

5. Page Speed Online API

6. WhatsonWhen - Closed When?

7. Unofficial Guides - Closed 2013?

8. WDYL search engine - Closed 2018

9. Cloud Messaging

10. Correlate - Closed Dec 2019

[Edit]

It is interesting to note that couple of products from 'least likely to close' list got closed as well.

4. Picasa - Closed Feb, May 2016

9. Toolbar - Closed Dec 2021