Reproducing the archives' search capabilities would be an arduous undertaking. Maybe a solution would be to decentralize the task by do-it-yourself archive searches. If I am not mistaken, the unix shell utilities awk (or gawk) can do this. More powerful string handling can be done with spitbol. Cat's Paw in Salidas CO provided spitbol once upon a time; maybe they still do. There may be a steep learning curve. But once its done, its done.
The past archives could be distributed on cdrom, zip disk or tape, while the Silver-List could continue as it is to supply daily updates. I haven't done anything like this, but surely somebody on the List has had experience with disbanded bioinformatics projects with similar archive continuation problems. If so, thanks in advance for your input. Best regards, Matthew