Here's the simple procedure for lobbying your legislators via the Legislative Research Council's website:
Find out the names of the legislators you wish to lobby. If you're not sure which district you live in, check your voter registration card to find out or go to the Secretary of State's Voter Information Portal: https://sdsos.gov/Elections/VIPLogin.aspx. If you live in the district of those you want to lobby, your message will carry more weight than if you don't.
Draft your message. You can then cut and paste it into the LRC's website.
On the menu bar, click on "Legislative Session," then on "2014."
On the menu that appears, click on "Legislators."
Click on the name of the first legislator you wish to lobby. You'll go to a screen showing a photograph of the legislator and containing basic information about that person: party, district, county, occupation, contact information, etc. Under "Other Contact Information -- Email," click on the contact link.
You're now at the message screen. You MUST enter a valid email address in the top box; the message won't be sent without it. Enter your legislative district, the subject of your message, and then cut and paste your carefully crafted message into the box. Proofread. Sign the message.
Click on "Send."
On that same page, go back up to the "To:" box and pull down the list of legislators. Both senators and representatives are listed, so you can simply go to each of the legislators you want to lobby, one at a time, and send them the same message. Be sure, however, that if you begin your message with "Dear Representative ___," that you change that greeting for each subsequent email.
Shortcut:
You can email your legislators simply by using the following format: