From time to time we all need inspiration to what we do. I have been member of clubs and groups, but in recent years I have worked more or less alone, and when I need some inspiration, I turn to YouTube.
NIK Collection is a fine plugin for Photoshop and Lightroom. When owned by Google, it became free for download, but it were sold to DXO Labs, who now charge money for it. But with DXO Labs, you can expect the collection to be maintained and developed.