Absolutely. Over the last decade numerous research studies have shown the effective potential of online therapeutic conversation. You will find below a good start for showing the breadth of the telemedicine and online medicine field:
“Internet-based versus face-to-face cognitive-behavioral intervention for depression: A randomized controlled non-inferiority trial”
http://www.jad-journal.com/article/S0165-0327(13)00512-0/pdf
Linda Godleski, M.D.; Adam Darkins, M.D., M.P.H.; John Peters, M.S. (2014) “Outcomes of 98,609
U.S. Department of Veterans Affairs Patients Enrolled in Telemental Health Services,
2006–2010”
http://dx.doi.org/10.1176/appi.ps.201100206
Andersson, G., & Cuijpers, P. (2009). “Internet-based and other computerized psychological treatments for adult depression: A meta-analysis.” Cognitive Behaviour Therapy, 38(4), 196-205.
http://www.ncbi.nlm.nih.gov/pubmed/20183695
Barak, Azy, et al. (2008). “A comprehensive review and a meta-analysis of the effectiveness of internet-based psychotherapeutic interventions.” Journal of Technology in Human Services, 26.2-4: 109-160.
http://www.tandfonline.com/doi/abs/10.1080/15228830802094429#.VI8vaCvF_hs
Wantland, D. J., Portillo, C. J., Holzemer, W. L., Slaughter, R., & McGhee, E. M. (2004). “The effectiveness of Web-based vs. non-Web-based interventions: a meta-analysis of behavioral change outcomes.” Journal of Medical Internet Research, 6(4).
http://www.jmir.org/2004/4/e40/
“Internet-versus group-administered cognitive behaviour therapy for panic disorder in a psychiatric setting: a randomised trial”
http://www.biomedcentral.com/1471-244X/10/54
“Home telemental health implementation and outcomes using electronic messaging.”
http://www.ncbi.nlm.nih.gov/pubmed/22052966
“Mobile Assessment and Treatment for Schizophrenia (MATS): a pilot trial of an interactive text-messaging intervention for medication adherence, socialization, and auditory hallucinations.”
http://www.ncbi.nlm.nih.gov/pubmed/22080492
Antiretroviral Medication Adherence for HIV/Aids:
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3718389/
http://www.biomedcentral.com/content/pdf/1745-6215-12-5.pdf
“Distance Therapy Comes of Age.” Scientific American.
http://www.scientificamerican.com/article/distance-therapy-comes-of-age/