Manybooks.net offer loads of kindle friendly ebooks for free. You can actually download straight from your kindle.

Make sure you’ve got network access (wifi or 3g), then press menu, then experimental, then launch the web browser. From here you have access to thousands of books.

I’ve been super happy with my Kindle since I took delivery a month ago. My best find so far has been that using longform and Instapaper gets me a free weekly magazine with content from magazines like Rolling Stone, Wired and the New York Times.

Here’s the very short list of apps I’m using most days:

• Instapaper - send a daily or weekly bundle of pages you’ve marked to read
• longform.org - great site for decent long articles - this integrates beautifully with instapaper
• KindleFeeder - send your Kindle RSS feeds (saving the money Amazon want to charge for this)
• ReKindleIT - send a web page to your kindle immediately, nicely formatted.

Got any good tips to share? My only gripe these days is that not all the books I want to read are available on kindle yet..