How to, right click email address, save to database?

[JB]

On a daily basis, I write to many folks. I would like to build a database to
store email addresses for future marketing.

I would like it to do the following:

*When I find email address I would like to save, right click, and have
option to save to Database, and then be asked to save in which database,
list, directory...
*Would like to build the database based on TLD domains, and then host name

Has anyone done this with good results?

Thanks,

JB