Humankind is entering a novel creative era in which anybody can synthesize digital information using generative artificial intelligence (AI). Text-to-image generation, in particular, has become vastly popular and millions of practitioners produce AI-generated images and AI art online. This chapter first gives an overview of the key developments that enabled a healthy co-creative online ecosystem around text-to-image generation to rapidly emerge, followed by a high-level description of key elements in this ecosystem. A particular focus is placed on prompt engineering, a creative practice that has been embraced by the AI art community. It is then argued that the emerging co-creative ecosystem constitutes an intelligent system on its own -a system that both supports human creativity, but also potentially entraps future generations and limits future development efforts in AI. The chapter discusses the potential risks and dangers of cultivating this co-creative ecosystem, such as the bias inherent in today's training data, potential quality degradation in future image generation systems due to synthetic data becoming common place, and the potential long-term effects of text-to-image generation on people's imagination, ambitions, and development.

Crowdsourcing platforms are increasingly being harnessed for creative work. The platforms' potential for creative work is clearly identified, but the workers' perspectives on such work have not been extensively documented. In this paper, we uncover what the workers have to say about creative work on paid crowdsourcing platforms. Through a quantitative and qualitative analysis of a questionnaire launched on two different crowdsourcing platforms, our results revealed clear differences between the workers on the platforms in both preferences and prior experience with creative work. We identify common pitfalls with creative work on crowdsourcing platforms, provide recommendations for requesters of creative work, and discuss the meaning of our findings within the broader scope of creativity-oriented research. To the best of our knowledge, we contribute the first extensive worker-oriented study of creative work on paid crowdsourcing platforms.

Diet is a key aspect in losing weight. Yet choosing a suitable diet among the practically unlimited options out there remains a daunting task. To this end, we contribute The Diet Explorer: a lightweight system usable with an intuitive graphical user interface, that relies on aggregated human insights for assessing and recommending suitable weight loss diets. We compared the system's performance against the de-facto online search engine, Google, in discovering personalised diets. Our results suggest that the system, bootstrapped using a public crowdsourcing platform, provides results comparable to those of Google in terms of overall satisfaction, relevance, and trustworthiness. However, The Diet Explorer was perceived as significantly faster than Google for discovering diets. Finally, this paper contributes an open-source version of the system, re-implemented as aWordPress plugin for the scientific community to use and modify for their own purposes.

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Writing articles involves searching, exploring, evaluating and reflecting upon different perspectives. To this end, online search engines are commonly used tools to support writing. However, online search engines, such as Google, fall short in supporting complex queries that satisfy multiple criteria simultaneously. In this paper, we present our studies with GAS, a crowd-powered tool that allows writers to discover viewpoints, solutions and ideas that best fulfil multiple criteria simultaneously. Our user studies validate GAS as a beneficial companion to online search engines in supporting writing. We found that GAS helps people come up with ideas and write with more confidence, resulting in a higher self-reported article quality and accuracy when compared to only using an online search engine. Through our experiments, we also develop an understanding of the distinct process that people employ when searching for and exploring open-ended, subjective information to support exploratory writing.