1461100955-c6b2a7ab-8376-4e27-867c-c3c4b8baee1b

1. A method for collaboration, comprising:
implementing a collaboration tool through which networked users collaborate;
storing artifacts of the collaboration in a database associated with a particular instance of the collaboration tool;
providing access to the database to the users through the collaboration tool so that artifacts can be manipulated; and
displaying a user-selectable option for viewing the state of one or more artifacts corresponding to a time selected by a user.
2. The method of claim 1 wherein the collaboration tool includes a collaboration place.
3. The method of claim 1 further comprising playing back information on how one of the artifacts evolved over time.
4. The method of claim 1 wherein the artifact is a document.
5. The method of claim 1 wherein the displaying comprises displaying a calendar.
6. The method of claim 1 wherein the displaying comprises displaying a slide bar.
7. The method of claim 1 wherein the database is displayed in a things window in association with a chat window.
8. The method of claim 1 further comprising displaying the artifact in its previous state.
9. A system for collaboration, comprising:
a computer that is configured for:
implementing a collaboration tool through which networked users collaborate;
storing artifacts of the collaboration in a database associated with a particular instance of the collaboration tool;
providing access to the database to the users through the collaboration tool so that artifacts can be manipulated; and
displaying a user-selectable option for viewing the state of one or more artifacts corresponding to a time selected by a user.
10. The system of claim 9 wherein the collaboration tool includes a collaboration place.
11. The system of claim 9 further comprising playing back information on how one of the artifacts evolved over time.
12. The system of claim 9 wherein the artifact is a document.
13. The system of claim 9 wherein the displaying comprises displaying a calendar.
14. The system of claim 9 wherein the displaying comprises displaying a slide bar.
15. The system of claim 9 wherein the database is displayed in a things window in association with a chat window.
16. The system of claim 9 further comprising displaying the artifact in its previous state.
17. A computer readable medium having instructions thereon for performing steps for collaboration, the steps comprising:
implementing a collaboration tool through which networked users collaborate;
storing artifacts of the collaboration in a database associated with a particular instance of the collaboration tool;
providing access to the database to the users through the collaboration tool so that artifacts can be manipulated; and
displaying a user-selectable option for viewing the state of one or more artifacts corresponding to a time selected by a user.
18. The computer readable medium of claim 17 wherein the collaboration tool includes a collaboration place.
19. The computer readable medium of claim 17, the steps further comprising playing back information on how one of the artifacts evolved over time.
20. The computer readable medium of claim 17 wherein the artifact is a document.
21. The computer readable medium of claim 17 wherein the displaying comprises displaying a calendar.
22. The computer readable medium of claim 17 wherein the displaying comprises displaying a slide bar.
23. The computer readable medium of claim 17 wherein the database is displayed in a things window in association with a chat window.
24. The computer readable medium of claim 17, the steps further comprising displaying the artifact in its previous state.

The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.

1. A process for regenerating a used acidic ionic liquid catalyst, comprising:
a. removing the used acidic ionic liquid catalyst from a reaction zone in which said catalyst was used; and
b. contacting at least a portion of the used acidic ionic liquid catalyst with at least one metal in a regeneration zone in the absence of added hydrogen under regeneration conditions for a time sufficient to increase the activity of the used acidic ionic liquid catalyst for alkylation.
2. The process according to claim 1, wherein the regeneration metal is selected from the group consisting of Groups VI-B, VIII, III-A, II-B, and their mixtures.
3. The process according to claim 1, wherein the regeneration metal is selected from the group consisting of aluminum, indium, gallium and zinc.
4. The process according to claim 1, wherein the regeneration metal is in a microscopic form.
5. The process according to claim 1, wherein the regeneration metal is in a macroscopic form.
6. The process according to claim 1, wherein the reaction zone contains an inert hydrocarbon in which conjunct polymers are soluble.
7. The process according to claim 5, wherein the inert hydrocarbon is selected from the group consisting of normal hydrocarbons ranging from C5-C15 and their mixtures.
8. The process according to claim 1, wherein the used acidic ionic liquid catalyst has been used to catalyze a Friedel-Craft reaction.
9. The process according to claim 8, wherein the Friedel-Craft reaction is alkylation.
10. The process according to claim 1, wherein the used acidic ionic liquid catalyst comprises an imidazolium, a pyridinium, a phosphonium, a tetralkylammonium derivative, or their mixtures.
11. The process according to claim 1, wherein the used acidic ionic liquid catalyst is a chloroaluminate ionic liquid.
12. The process according to claim 11, wherein the regeneration metal is aluminum.
13. A used acidic ionic liquid catalyst, which has been regenerated in accordance with the process of claim 1.
14. A process for regenerating a used acidic ionic liquid catalyst which has been deactivated by conjunct polymers, comprising: removing the used acidic ionic liquid catalyst from a reaction zone and contacting the removed used acidic ionic liquid catalyst with at least one metal in a regeneration zone in the absence of added hydrogen under regeneration conditions in the presence of an inert hydrocarbon in which conjunct polymers are soluble for a time sufficient to increase the activity of the used acidic ionic liquid catalyst.
15. The process according to claim 14, wherein the inert hydrocarbon is selected from the group consisting of normal hydrocarbons ranging from C5-C15 and their mixtures.
16. The process according to claim 14, wherein the regeneration metal is selected from the group consisting of Groups VI-B, VIII, III-A, II-B elements, and their mixtures.
17. The process according to claim 14, wherein the regeneration metal is selected from the group consisting of aluminum, indium, gallium and zinc.
18. The process according to claim 14, wherein the regeneration metal is in a microscopic form.
19. The process according to claim 14, wherein the regeneration metal is in a macroscopic form.
20. The process according to claim 14, wherein the used acidic ionic liquid catalyst has been used to catalyze a Friedel-Craft reaction.
21. The process according to claim 20, wherein the Friedel-Craft reaction is alkylation.
22. The process according to claim 14, wherein the used acidic ionic liquid catalyst comprises an imidazolium, a pyridinium, a phosphonium, a tetralkylammonium derivative, or their mixtures.
23. The process according to claim 14, wherein the used acidic ionic liquid catalyst is a chloroaluminate ionic liquid.
24. The process according to claim 22, wherein the rejuvenation metal is aluminum.