International Railway Journal's October edition features "Building Istanbul’s Kadiköy - Kartal Metro" as an online supplement. In May I saw the work under way from the window of the Thessaloniki to Istanbul Train. At the time I assumed this was some of the work for the Marmary Rail Tunnel, but it is work to link up other parts of Istanbul's public transport.
The IRJ's articale is also interesting for the way it is provided as an online suppliment to the print jounal. The article is listed in the table of contents of the print edition, with a note saying "online edition". Presiumbly this is desinged to encourage people to read the online version. The online version is provided using Nxtbook Media, with Adobe Flash. This provides a facsimilie of the print edition, which is hard to use compared to ordinary web pages and which takes a long time to load on a slow Internet connection.