Toaru Kaki no Campaign

Toaru Kaki no Campaign (とある夏期の限定企画(キャンペーン)), translated as "A Certain Summer Campaign" was a large promotional event that occurred near the end of August 2013, coinciding with several marketing events for the Toaru Majutsu no Index franchise.

Background
To celebrate the publication of Shinyaku Toaru Majutsu no Index 8 (9/10 release), and Toaru Kagaku no Railgun 9 (8/27 release), the A Certain Summer Campaign will begin! There will be an event where fans of the Toaru series will get a free trial of the Toaru franchise through "A Certain Summer Magazine", as well as an official character popularity elections. There are a lot of stuff to watch out for!

The site contains promotional ads for various Toaru Majutsu no Index-related merchandise, it is here that the official announcement of the Toaru Kagaku no Accelerator Manga is made despite being already leaked a few days prior.

Events
Coinciding with this event is the release of a 50-page preview of Shinyaku Toaru Majutsu no Index Light Novel Volume 08 on the Dengeki website.

Toaru Sakuhin no Convention
Toaru Sakuhin no Convention (とある作品の大総選挙（コンベンション）) was a character poll that was part of the event, featuring nearly every character in the franchise. Normally, the polls would have been topped by Misaka Mikoto due to her sheer popularity, but upon its opening, 2channel Vippers began influencing the polls, voting for things such as Gekota, to even Hino Jinsaku.

Once votes 103,000 votes, the polls will close. The winner of the popularity poll gets a Haimura-illustrated message card with messages from Kamachi and the other comic creators, as well as apparently a "project".

103,000 seconds TV ~Magic and Science will save the world~
It is an event that is done as commemoration for the Index movie Blu-Ray sales, there will be a show on Nico-Nico lasting 103,000 seconds (28 hours and 40 minutes). Several voice actors, Kawada Mami and Kurosaki Maon are confirmed to be part of it.

Moreover, a schedule is later released detailing the activities to be done during the event. Here, it is revealed that the event will broadcast selected episodes of Index, Index II, Railgun, and Railgun S, as well as the 22 minute preview of the Toaru Majutsu no Index Movie: Miracle of Endymion. The event will also have the main cast.