I have visited a blog that provides free icons to download free but they need you to join their rss feed before you can download it. If they are good stuffs and it is a nice blog then we can join their rss feed although it is a bit forceful, but this is one of the way to attract more traffic to your blog. You can try this way if you like but please make sure that you have good stuffs to share, otherwise nobody will going to join your rss since it is seem like forcing people do something that they don’t like.