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Re:So you launched your startup here first (last week, month... by r7000 on Tuesday August 05, 2008 @08:20AM (#267391)
Growth for FlashcardDB was slow and steady for the first few months, but found some real traction this past month for some reason (July). It is getting about 40-50 new users per day and just passed five thousand card sets, 3500 users and just under a quarter million flashcards.

The most recent change was adding support for the Supermemo/Mnemosyne-style Spaced Repetition algorithm:

http://flashcarddb.com/graded

http://flashcarddb.com/blog/8-feeds-font-sizes-and-a-new-srs

Since using the Leitner System is also an option, I hope to have a real set of data eventually to compare whether or not one algorithm is truly "more efficient" than the other.

Re:So you launched your startup here first (last week, month... by SwellJoe on Tuesday August 05, 2008 @12:26PM (#267578)
Awesome idea. Most of the existing tools in the space are kinda ugly desktop apps for Windows. And education is a pretty good field for premium web services...I've heard from several web-based startups that they've gotten good uptake among teachers, even when the app wasn't originally targeted to teachers.
Re:So you launched your startup here first (last week, month... by r7000 on Tuesday August 05, 2008 @12:53PM (#267608)
Thanks! You have a good point. Some days I get 100 card sets all nearly identical and feedback messages saying "u suk, I hate my teacher! lol" :)
Re:So you launched your startup here first (last week, month... by SwellJoe on Tuesday August 05, 2008 @06:45PM (#267976)
Speaking of which, you probably want to work on dealing with card sets. Search works...by some definition of "works", but it looks like things are getting a bit out of hand with repetitive sets. One of the cool things about Supermemo and imitators is that there are big, maintained sets for a lot of common tasks. You might want to make a "Featured Sets" page, that gives props to the folks who make awesome sets. Allowing folks to rate sets might also be cool, since quality varies so wildly...but, be careful not to clutter up the page too much. It's nice and clean right now.
Re:So you launched your startup here first (last week, month... by r7000 on Tuesday August 05, 2008 @07:29PM (#268009)
I agree. I am happy to have the problem. I am thinking of some sort of "Flashcard-Rank" that rates the quality of the card sets by using metrics such as number of times studied, number of users who have saved the set, more than X number of cards and maybe a simple user rating system.

The "featured card set" on the home page was a start of the "Featured Sets" idea. That was ok when there were less sets to choose from. But, yes, it is time to expand it now. Good examples and how-tos can really help.

Thanks very much for sharing your thoughts.

Re:So you launched your startup here first (last week, month... by pongle on Tuesday August 05, 2008 @11:49AM (#267542)
I was just playing with this. Boy I wish I had it when I was trying to learn Japanese!

Thanks for the pointer.

Re:So you launched your startup here first (last week, month... by r7000 on Tuesday August 05, 2008 @12:57PM (#267614)
No problem - thanks for checking it out!