Yes but not as much as you might be inclined to think.

Creating positive sentiment towards communism via jokes and pictures is probably the least impactful and the most oriented towards propagandising the base.

Memes have a wider reach than articles but they vary depending on the message and virality etc. It's an old format but doing the "Did you know that an aerospace engineer changed the face of modern surgery using applied aerospace technology? Google 'Operation Aerodynamic'" style of meme drives a significant amount of awareness and engagement with the content, as an example here.

Sharing articles is more impactful because it helps develop awareness and knowledge but it tends to have less reach and much less virality.

Ultimately my position is that the internet is where praxis goes to die. There can be good groundwork to lay the foundations for the development of positive sentiment towards communism and ideological development but there's no substitute for reading actual theory and irl organising.