How timely. I was looking for an opportunity to post a link to Piya Tan's latest essay on Jhana that discusses the debate between the Absorption camp and the Discursive camp. It is found here -http://dharmafarer.org/wordpress/wp-con ... .-piya.pdf
I think it is a fairly even treatment of the subject, even if the technical analysis of the Pali grammar which English readers typically overlook may be a bit distressing for those accustomed to reading the English translations.
A brief summary of Piya's essay for the Absorption model of Jhana -
1. pre-Buddha meditation;
2. the problem of Alara's and Rama's attainments (why they did not lead to enlightenment);
3. the meanings of the word "Jhana" (and its verbs) in the suttas;
4. a survey of the 2 models;
5. the present tense in Pali and how it is misapplied in reading the "insight" passages;
6. an alternative rendering of the Anupada Sutta, MN 111;
7. the post-Jhana upacara samadhi in the suttas.