Best Free Services Online

Here is a summary of the best free services online as gathered from Reddit comments:

Certifications

Google Analytics Cert: It's free and provides knowledge in audience growth and development, which is valuable for employers.
FEMA Certification: Offers training on disaster response that looks good to employers.
Medical Terminology Certification: Useful for medical professionals.
IBM Watson Analytics 101: Provides certification in analytics.
MongoDB Certification: Offers a free certification on MongoDB for programmers.
EPA NPDES Certification: Good for environmental and related fields.
IBW: Certification for health and safety.
Deputy Heart Attack: Provides certification on heart attack response.
FreeCodeCamp Frontend Programming: Offers a certificate in programming with HTML, CSS, and JavaScript.

Courses

MITx on EdX: Provides various free courses online.
Google's Digital Garage: Offers digital marketing courses and certification.
NPDES Training: National pollution discharge elimination system training.
Open Culture: Provides free online courses.
OpenStax: Offers free textbooks.
edX: Offers various certification courses.
W3Schools: Provides free courses on SQL.
First Aid Web: Offers free CPR course.

Useful Websites

Freecycle: Where people give away items for free.
GetChipDrop: Free wood chips delivery service.
Unclaimed: Helps find unclaimed assets.
Alternatives: Offers free alternatives to paid software.
Freerice: Quiz site that donates rice for correct answers.

These services range from certifications to courses to useful websites that offer valuable knowledge and resources for personal and professional development.