what's the best way to search through old posts?
You can use the badged posts and dig through those. You can go through old hubski newsletters to find good content. You can browse the tags or go through all posts with 9 shares and find some jewels. If you want to search for a specific post, you can use the search engine in the upper right hand corner. -Be sure to click on the "?" next to it for the best ways to find what you are looking for. Good luck!
Also, you can change the URL of http://hubski.com/s.global?id=9 to any number. Like 100. Or 44. http://hubski.com/s.global?id=44
Currently, the best depth is via user-specific search. i.e.
We are well aware of the difficulty in search, and have been discussing solutions, which will probably mean a dedicated server. forwardslash this could be one avenue towards the kinds of things that we were discussing last night. user:mk google
If you've saved posts they will be in your "saved posts" on your profile. You can also go through your comments and see which posts you commented on. Failing that, you may follow the #bestof2013 tag and see what others suggest. Or, you can click on "Community" and look at who has been the "most badged". Although, 'Saydrah' is listed on that and since I've been a life-long Redditor that makes me a tad wary. Anyways, I cannot seem to find a way to reverse sort the feed by time, which would be optimal.
Assuming you share the things you think are good, looking over your shares is a good way to find things you thought were good.
I would recommend staying away from almost everything suggested below -- the purpose of the bestof shouldn't necessarily be to highlight all the badged posts which are already highlighted on 'badges'. Rather, follow bfv's suggestion and hunt heavily through your shares, my shares, thenewgreen's shares, shares of users whose content you regularly enjoy, etc.
I think that this is the best idea. I'm pretty stingy with my own shares, and tend to save them for the "best" content, but searching the other users who I follow who have ben here much longer than I have is a great idea.