We updated the front page today to normalize each link's hotness to the other links within the same reddit. What this means is that you will start seeing more content on your front page from smaller reddits. We did this to give the smaller reddits that you are subscribed to a fair chance of getting displayed. If a particular link is very hot within its own reddit, it will now be very hot on your front page as well.
The situation before we made this change was that the more popular reddits (e.g. reddit.com and politics) would wash out all the other content. Of course, if you only want to see content for a specific reddit, you can still go to that reddit's page (e.g. reddit.com/r/politics).
Until you change your subscriptions by checking/unchecking reddits at reddit.com/reddits, you will see content from the top ten most active reddits, which are recomputed daily.
We are all pretty excited about this change and think you'll like it as well. Enjoy!
