Have just gone on a Google search and found some notable links.
I picked up Keith Devlin’s Logic and Information last year but am yet to read it; I’m planning to at least skim through it in the near future. In the mean time, I found this course on Logic and Information given by Devlin. Course material is available for download and seems to be quite good.
Also, this link on Information drew my attention. Going by the Stanford Encyclopedia of Philosophy archives, I’m not sure if this article ever made it as a published entry, but it seems to have been a possible candidate for inclusion in the SEP quite some time ago.
Download: On Quantifying Semantic Information
Abstract: The purpose of this paper is to examine existing methods of semantic information quantification and suggest some alternatives. It begins with an outline of Bar-Hillel and Carnap’s seminal account of semantic information before going on to look at Floridi’s quantitative theory of strongly semantic information. The latter then serves to initiate an in-depth investigation into the idea of utilising the notion of truthlikeness to quantify semantic information. Firstly, a couple of approaches to measuring truthlikeness are drawn from the literature and explored, with a focus on their applicability to semantic information quantification. Secondly, a similar but new approach to measure truthlikeness/information is presented.