generally link exchange programs, artificial link building game, automated link building, link farming, wiki spamming, comment spamming, low-quality directory submission, low-quality forum posting will be affected by Google penguin update.
all you need to do is to go to your search console dashboard, expand Search Traffic menu from the left side, then click on Search Analytics option, then tick on impression and position option. Make sure, by default the queries option is selected and finally sort out your result with impressions...
Actually local business listings are extremely powerful. Because of this, no local business owner can afford to neglect the data published about his company on the Internet. The most sensible thing is to take control of that data and manage it on an ongoing basis to ensure both its consistency...