Darren Rowse has an interesting post over on ProBlogger.net. He explains the most common reasons that users unsubscribe from blog RSS feeds.
Can you guess which reason came out on top?
Nope, it wasn't poor content. (That came in at numbers 6 and 7.)
It wasn't the advertising. (Only three people said that.)
And it wasn't too much selling. (That was number 14 on the list.)
It was too many posts.
If that was a surprise to you, join the club. But if you're thinking of cutting back on your posts,be aware that number 2 on the list of reasons to turn off the RSS was... too few posts.
So what's the optimal number of posts that will keep people returning to your site, reading your
content and clicking your ads?
I wish there was one easy answer to that but I've got a feeling it's not that simple. It's safe to say that you shouldn't be posting more than one blog entry a day. You also shouldn't be putting up less than one post a week. But whether people will stop reading if you break those rules will depend on the size and topic of your posts.
The real problem with putting up too much content, I suspect, is that the reader has to pick and choose which posts to read. Users would much rather simply read everything that comes in.
Sorting the posts can take effort and get pretty frustrating.
If you are producing a lot of content then, it might be a better idea to break them off into different RSS feeds with different themes. That will let your readers organize your content and
make it easy for them to find the information that's most important.
The most valuable lesson that I think you can take away from Darren's survey though is that you
should be keeping a close eye on the numbers of subscribers that you lose.
If you're losing too many, count the number of posts you're putting up... and divide them.