107 complaints were made about bloggers to the advertising watchdog in 2018.
That compares to 105 in 2017 and just 11 in 2016.
It follows a clampdown by the Advertising Standards Authority on influencers who don't make it clear that they're being paid for content.
New guidelines from the watchdog issued last year require bloggers to flag marketing content with a hashtag.
According to the ASAI code, bloggers should at a minimum include the hashtags '#Ad' or '#Sp' when posting marketing material.
Last year, the ASAI warned bloggers and social media influencers that they'll be named and shamed if they mislead their followers.
So far, three bloggers have been called out on the ASAI website.
In one case, blogger Rosie Connolly was found in breach of the code for promoting a Rimmel foundation with images using phone camera filters.
The posts were removed so the ASAI said no further action was required, although the watchdog reminded everyone involved to ensure that any pre- and post-production techniques 'do not mislead about the attributes of the product being advertised'.