It occurred to me that there is no overview document which shows which classic D&D products have already been released on the D&D Classics website, and which are still to come. Therefore, I've decided to create one - but considering the scope of this project, I could use some help.
The document takes the form of a Google Sheet document (think of it as an online version of Excel, if you are not familiar with it) and can be found here. It can be edited by anyone with the link. So far, we have completed the subsheets for Original D&D and AD&D 1E, which should show you the basic formatting. This includes the name of the product - we have taken the names, formatting, and subcategories from this website, and I recommend you use it as well, at least for the editions up to 3rd (later editions aren't listed there). This is followed by a pull-down menu showing availability, the link to the D&D Classics product page (if available), and notes on the product - in particular, any issues with the PDF (sadly, a few are missing maps and the like). At the bottom of the subsheets there are some statistics about how many PDFs in this category have been published.
I could really use some help with the subsheets for the later editions (AD&D 2E, D&D 3E, D&D 3.5E, D&D 4E, and D&D 5E/Next). Please adhere to the formatting of the completed sheets.
Once we have completed sheets for all the editions, we can also create sheets for individual setting lines (for instance, all Forgotten Realms products across the edtions). These can make use of the edition-based sheets, so that when we update these later as new products become available, these sheets will be automatically updated as well.
Is anyone interested in helping out with this?
New entries for AD&D 2E!
- Non-line-specific AD&D 2E products.
- All 2E Greyhawk products.
- All 2E Forgotting Realms supplements (no adventures so far).
Keep them coming!
Current status:
- Editions up to AD&D 2E seems to be complete.
- I think the product lists for 3E and 3.5E are complete, but availability and links still need to be added.
- 4E and 5E are still missing completely.
I won't have any time until Sunday. Does anyone want to tackle this?
Nice work! I wish I could contribute, but I have enough projects right now that taking on a new one is not in the cards for me. 
I think the sheets for the various editions are complete, but I would appreciate it if people checked the 3.5 and 4E sheets again.