How do I get the Android Kindle/nook apps to recognize .MOBI/.EPUB files on my SD card? I prefer to manage my ebook files manually, so I'm having trouble getting the Android Kindle and nook apps to locate the .MOBI and .EPUB files that I put on my SD card.

Is there any sort of Browse feature in these apps for locating custom ebook files?

For the moment, I'm getting around this issue by using Calibre/FBReader, but I'd rather use plain drag &amp; drop and the official Kindle/nook apps if possible.
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Custom ebook files can be read on Android devices by employing a collection of software, detailed below.

Both Android and iOS devices can simply use iBooks or Stanza, and connect to Calibre.

A more manual method employes Astro for browsing Android files manually. For any ebook file format, if an appropriate app is installed, Astro will be able to open the ebook. See Wikipedia for a table of ereaders vs ebook file formats supported.

Secondary software will be required to actually get the ebook files onto the mobile device:

SugarSync

Dropbox

Each ereader app looks for books in a different directory. A good compromise is to store all ebooks in /mnt/sdcard/Books, organizing ebooks at will through folder hierarchies, and using Astro to navigate to and open individual ebooks.

FBReader


Autorecognition: /mnt/sdcard/Books
Custom browsing: FBReader library -&gt; File tree


Kindle


Autorecognition: /mnt/sdcard/Kindle


nook


Autorecognition: /mnt/sdcard/Nook/MyDocuments


Adobe Reader


Autorecognition: /mnt/sdcard/Download/Adobe Reader
Custom browsing: Documents -&gt; All PDFs -&gt; Folder View