I seem to get the most apples for tutorial posts.  
 
 Harvesting seeds from the grocery store was pretty successful, same with 
my linen thread and 
the cotton v linen tutorials in this thread.
 
 Generally, I gather up the knowledge I have, supplement it with some books and/or google.  Write what I know, write it in a way that makes an easy reference with subtitles.  
Gussy it up a bit, and engage the audience by asking questions of things I want to know more about.  
amaranth thread and 
fava bean thread both make good examples.  It's the posts I write like a blog tutorial, that seem to gain the most apples.
 
 If I have a chance, I also like to include book references that the reader can get from their local library - and link to the permies book review threads so the reader can see the reviews.  
 
 Talking about book reviews, there's another place I've picked up apples.  A good book review can often be a good source of apples and pie.
 
 Content that people learn things from, is easy and clear to read (there's only one wall of text person I know who regularly gets apples, but her writing is exceptional), is, in my opinion, the fastest path to apple cider.
 
 
 
 Of course, the cider press is a double edged sword.
 
 It's nice to be able to vent our frustrations and explore the more controversial topics surrounding permaculture, however, it's also a place where people have been known to earn apple cores (aka, loose apples).