I recommend

Course sales service:

E-learning platform (WebtoLearn) - click here
If you buy training from me, I use this service.

Video sales funnel platform:
Free conference room - Click here

Ad bot platform:
Free conference room - Click here

Appointment platform (free) :
Free conference room - Click here

SMS platform
SMS platform - Click here and get 50 SMS free
Referral code: D9C9

Conference Rooms:
Free conference room - click here

Autoresponders (mass e-mailing)

Autoresponder in Polish - Click here
If you want to receive a 100zł bonus sign up for a paid account right away by clicking here

Autoresponder in English - Click here
Use my mailerLite referral link and receive $20 as a gift for the service

Domains, hosting and websites:

Affordable domains and custom hosting to create a site using WordPress - click here
Unique customer discount code: 19994756
The service is in Polish and has great customer support via phone, chat and email.

Ready-to-use website creation services for free:
Webwave, click here and get 50% discount when you buy the paid version (with your own domain and no ads)
Systeme, a website creation program with a whole funnel, click here and get free access
Wix - click here and get access

Link management:
Link management - click here to get an account for life for 9 Euros.
Awesome program for link management and click tracking

Free program in Polish but only for link shortening:

Program for grouping links e.g. in Bio on your Facebook

Another popular program for link shortening:

Affiliate program for earning money from filling out surveys (free). English only.
To get access - click here