Problems in making a submitted paper available to interested fellow researchers
I don't see any problem with sending the paper to interested colleagues. This actually a good thing and if you then mention that this is still work in progress and might occur changes in the final text, it is no problem. Additionally why do you want to indicate that they should not circulate your paper? It is still your own text and research and I guess, you want that as many people as possible can read your paper?! But by saying that they should not circulate the paper to other colleagues, this sounds strange to me (and probably, they do it anyway to some extent ;)  You can state in your CV or on your homepage that you have presented your work at conference X and that your paper Y is under review in Journal A and if your work get published, you can send the persons who got your previous version of the paper the link to the final version of journal article.  EDIT: my take on the argument above by  darij grinberg: Even if you send your earlier draft to the respective reviewer, it is not your fault and thus, not your problem that you should worry about. She/He could either indicate a conflict or interests because he or she knows you or he/she just observes the improvements of your paper and will give you further feedback.