These services are free.  They are "opt-in" meaning that we have to sign up for them. You can unsubscribe whenever you wish. There are many that are for various aspects of genealogy research and Family History.  This list are the ones that Family History Consultants may find useful.
(( If you find additional lists or corrections needed to the descriptions below please let me know alanjones10@home.com ))

LDS-WARD-CONSULTANT mailing list
This list is for Ward Family History consultants and others who help others learn how to do research. It contains many good ideas for getting support from Priesthood leaders and involving members in Family History. Those who want to learn are welcome.

To subscribe in regular mode send a message to  LDS-WARD-CONSULTANT-L-request@rootsweb.com that contains (in the body of the message) the command "subscribe" (without the quotes) and no additional text.

To subscribe in digest mode send a message to  LDS-WARD-CONSULTANT-D-request@rootsweb.com   that contains (in the body of the message) the command "subscribe" (without the quotes) and no additional text.

More information is available on website    http://homepages.rootsweb.com/~acwomack/LDS.htm   or
http://lists.rootsweb.com/index/other/Administrative/LDS-WARD-CONSULTANT.html

LDSFHCConsultants mailing list
This list is for Ward, Stake and other Family History consultants and others from around the world to allow the sharing of ideas and helping one another. Those who want to learn are welcome.

To subscribe in regular mode send a message to  LDSFHCConsultants-subscribe@egroups.com and no text.  More information is available on website http://www.egroups.com/group/LDSFHCConsultants

GHFHC-NEWS mailing list
This list is a mailing list for dissemination of the newsletter for the Geneva Heights Family History Center, Orem Utah. This is a read-only list and postings will not be accepted. This list is an example of an online newsletter produced by a Family History Center.

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to ghfhc-news-l-request@rootsweb.com  (regular mail mode) or ghfhc-news-d-request@rootsweb.com (digest mode.)

FHCNET mailing list
FHCNET is a mailing list for directors of LDS family history centers and others closely associated with the operation of family history centers. Topics for discussion include staff training, collection development, film/fiche management, equipment maintenance, FamilySearch, and patron services.

For more information go to http://groups.yahoo.com/group/FHCNET 
You can register for the list on the website or by emailing a blank email to FHCNET-subscribe@yahoogroups.com 

FHCTECH mailing list
This list deals mainly with computer hardware and software issues within a Family History Center, with particular emphasis on installing and maintaining a computer network.

Home Page:  http://homepages.rootsweb.com/~fhcnet/fhctech/ 

To subscribe in send the word "subscribe" (without quotes) as the only text in the subject line and body of a message to fhctech-subscribe@onelist.com 

ELIJAH mailing list
This list deals with the temple and spiritual side of LDS genealogy. A few subjects treated are how to get replacements for lost temple cards, fireside addresses and scriptures on genealogy research, and what constitutes an ordinance "worthy of all acceptation".

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to ELIJAH-D-request@rootsweb.com 

GEN-ROOTERS mailing list
This list is for members of The Church of Jesus Christ of Latter-day Saints to share ideas and helpful hints on the 'how-to's' of genealogy. You must be a subscriber to post to the list.

To subscribe send a nicely worded message to Dianne Morris at azdee@aol.com containing a brief description of your Church affiliation and a request that you be added to the list.

HANDCART-D mailing list
This list address the genealogy, journals, and stories of Pioneers of The Church of Jesus Christ of Latter-day Saints who settled in Salt Lake from 1847 to 1860.

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to HANDCART-D-request@rootsweb.com   

LDS-DAUGHTERS mailing list
The purpose of this list is not described on its dedicated Roots Web page but the title hints that it could be interesting.

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to LDS-Daughters-D-request@rootsweb.com   

LDS-GENEALOGY mailing list
This list is for members and ward consultants to discuss genealogical methodology, sources and spiritual issues.

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to LDS-GENEALOGY-D-request@rootsweb.com  

PAF-5-USERS mailing list
This list has users both expert and newbies of Personal Ancestral File (PAF) version 5, working together to help each other.

To SUBSCRIBE, send a message to:  PAF-5-USERS-L-request@rootsweb.com  (for individual messages) PAF-5-USERS-D-request@rootsweb.com  (for a digest of multiple messages) with the command: "subscribe" (without quotes) in the BODY of the message.  You will not be subscribed if any other text, including signatures, is included in the message.

For information is available on website http://lists.rootsweb.com/index/other/Software/PAF-5-USERS.html

There are similar lists for PAF2.31, PAF3, and PAF4 see www.rootsweb.com for details.

PAF-TEMPLES mailing list
This list covers methods of submitting data from Personal Ancestral File(PAF) to the Temple.

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to paf-temples-l-request@rootsweb.com  (regular mail mode) or to paf-temples-d-request@rootsweb.com (digest mode.)

FAMILYSEARCH mailing list
This list address Internet genealogy research methods and sources, including the use of the FamilySearch Internet website. This includes searching, downloading, contributing, cross-referencing and microfilm numbers.

To subscribe in send the word "subscribe" (without quotes) as the only text in the body of a message to familysearch-l-request@rootsweb.com (regular mail mode) or to familysearch-d-request@rootsweb.com  (digest mode.)

MORMON-INDEX mailing list
This list address queries about LDS (Mormon) Internet Resources, responses to those queries, announcement of new resources, and compilations of resources by subject.

To subscribe in send one of the following, without quotes, to majordomo@lists.panix.com ;
"subscribe mormon-index" for mail mode, "subscribe mormon-index-digest" for weekly digest, "subscribe mormon-index-issues" for monthly magazine.